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"Cohabitation" usually refers to unmarried couples who live together without formally registering their relation as a marriage. Such arrangements have become increasingly common in Western countries during the past few decades, being led by changing social views, especially regarding marriage, gender roles and religion.
More broadly, the term cohabitation can mean any number of people living together. To "cohabit", in a broad sense, means to "coexist". The origin of the term comes from the mid 16th century, from the Latin cohabitare, from co- 'together' + habitare 'dwell'.
- 1 Social changes leading to increase
- 2 Reasons for cohabitation in the United States
- 3 Contemporary objections to cohabitation
- 4 Effects on marriage and family life
- 5 By region
- 6 See also
- 7 References
- 8 External links
Social changes leading to increase
Today, cohabitation is a common pattern among people in the Western world.
In Europe, the Scandinavian countries have been the first to start this leading trend, although many countries have since followed. Mediterranean Europe has traditionally been very conservative, with religion playing a strong role. Until the mid-1990s, cohabitation levels remained low in this region, but have since increased.
During the past decades, in Western countries, there has been an increase in unmarried couples cohabiting. Historically, many Western countries have been influenced by Christian doctrines on sex, which opposed unmarried cohabitation. As social mores have changed, such beliefs have become less widely held by the population and some Christian denominations today view cohabitation as a precursor to marriage. Pope Francis has married a cohabiting couple who had children, while former Archbishop of Canterbury Rowan Williams and the Archbishop of York John Sentamu have expressed tolerance of cohabitation.
In recent decades high rates of participation of women in the workforce, and the widespread availability of highly effective long acting reversible contraceptives has led to women making individual choices over their reproduction with decreased reliance on male partners for financial stability. All these changes favored living arrangement alternatives to marriage.
In Central and Eastern Europe, during the late 1980s and early 1990s, there were major political changes, such as the fall of Communist governments. These societies entered a new era of increased social freedom, less rigid rules, and less authoritarian governments. They interacted with Western Europe and some became members of the European Union. As a result, the patterns of family life have started to change: marriage rates have declined, and marriage was postponed to a later age. Cohabitation and births to unmarried mothers increased, and in some countries the increase was very quick.
The deinstitutionalization of marriage refers to the weakening of the social and legal norms that regulate peoples' behavior in regard to marriage. The rise in cohabitation is part of other major social changes such as: higher divorce rate, older age at first marriage and childbearing, and more births outside marriage. Factors such as secularization, increased participation of women in the labor force, changing in the meaning of marriage, risk reduction, individualism, and changing views on sexuality have been cited as contributing to these social changes. There has also been a change in modern sexual ethics, with a focus on consent, rather than marital status (i.e. decriminalization of adultery and fornication; criminalization of marital rape), reflecting new concepts about the role and purpose of sexual interaction, and new conceptualizations of female sexuality and of self-determination. There have been objections against the legal and social regulation of female sexuality; with such regulations being often seen as violations of women's rights. In addition, some individuals may feel that marriage is unnecessary or outdated, leading to couples not formalizing their relation. For instance, in the European Values Study (EVS) of 2008, the percentage of respondents who agreed with the assertion that "Marriage is an outdated institution" was 37.5% in Luxembourg, 35.4% in France, 34.3% in Belgium, 31.2% in Spain, 30.5% in Austria, 29.2% in Germany, 27.7% in Switzerland, 27.2% in Bulgaria, 27.0% in the Netherlands, 25.0% in Slovenia.
The fact that many couples choose to live together without formalizing their relation is also recognized by the European Union. A 2004 directive forbids EU members from denying entry or residence of partners "with whom the Union citizen has a durable relationship, duly attested."
A reason for the more permissive and less traditional views on cohabitating would be a low sex ratio. A low sex ratio would mean there are much more women than men, resulting in differing societal values and acceptable behaviors.
Reasons for cohabitation in the United States
Today, cohabitation in the United States is often seen as a natural step in the dating process. In fact, "cohabitation is increasingly becoming the first coresidential union formed among young adults." More than two-thirds of married couples in the US say that they lived together before getting married. "In 1994, there were 3.7 million cohabiting couples in the United States." This is a major increase from a few decades ago. According to Dr. Galena Rhoades, "Before 1970, living together outside of marriage was uncommon, but by the late 1990s at least 50% to 60% of couples lived together premaritally.
People may live together for a number of reasons. Cohabitants could live together in order to save money, because of the convenience of living with another, or a need to find housing. Lower income individuals facing financial uncertainty may delay or avoid marriage, not only because of the difficulty of paying for a wedding but also because of fear of financial hardship if a marriage were to end in divorce.
When given a survey of the reasons why they cohabit, most couples listed reasons such as spending more time together, convenience based reasons, and testing their relationships, while few gave the reason that they do not believe in marriage. The extremely high costs of housing and tight budgets of today's economy are also factors that can lead a couple to cohabitation.
Today sixty percent of all marriages are preceded by a period of cohabitation. Researchers suggest that couples live together as a way of trying out marriage to test compatibility with their partners, while still having the option of ending the relationship without legal implications. "More than three-quarters of all cohabitors report plans to marry their partners, which implies that most of them view cohabitation as a prelude to marriage. Cohabitation shares many qualities with marriage, often couples who are cohabitating share a residence, personal resources, exclude intimate relations with others and, in more than 10% of cohabitating couples, have children. "Many young adults believe cohabitation is a good way to test their relationships prior to marriage. Couples who have plans to marry before moving in together or who are engaged before cohabiting typically marry within two years of living together. The state of cohabitation of a couple often ends either in marriage or in break-up; according to a 1996 study about 10% of cohabiting unions remained in this state more than five years. According to a survey done by The National Center for Health Statistics, "over half of marriages from 1990-1994 among women began as cohabitation.
Cohabitation, sometimes called de facto marriage, is becoming more commonly known as a substitute for conventional marriage. Common-law marriage in the United States can still be contracted in nine US states, and in two others under restriction. This helps provide the surviving partner a legal basis for inheriting the deceased's belongings in the event of the death of their cohabiting partner. In today's cohabiting relationships, forty percent of households include children, giving us an idea of how cohabitation could be considered a new normative type of family dynamic. As of 2012, 41% of all births in the US were to unmarried women. In three states (Mississippi - 55%, Louisiana - 53%, and New Mexico - 52%) births outside marriage were in the majority; the lowest percentage of births outside marriage was in Utah, at 19%. During the period 2006 - 2010, 58% of births outside of marriage were to cohabiting parents.
Contemporary objections to cohabitation
Contemporary objections to cohabiting couples include religious opposition to non-marital unions, social pressure for couples to get married, and potential effects of cohabitation on a child's development.
The rise in the number of cohabiting couples and children born out of wedlock in the Western world has made cohabitation a strong focus of sociological research. The rise in cohabiting couples in the United States, from around 450,000 in 1960 to 7.5 million in 2011 has been accompanied by US research performed on child development within cohabiting households. Opponents of cohabitation say non-marital parenting is an unsuitable environment for a child's development. One study from 2002 correlated lower numeracy skills and higher delinquency to children of cohabiting couples, however, recent studies that control for factors including poverty, the educational level of parents and violence in the home show children of cohabiting couples are developmentally similar to peers of comparable married couples.
Effect on children
In 2001, researchers compared teenage children living in a cohabiting household against peers in single single-parent households. The results showed Caucasian and Hispanic teenagers had lower performance in school, greater risk of suspension or expulsion than peers from single-parent households, and the same rate behavioral and emotional problems.
A study on the 1995 and 2002 National Survey of Family Growth found increases in both the prevalence and duration of unmarried cohabitation. The study found that 40% of children in the United States would live in a cohabiting household by age 12, and children born to single mothers were more likely than those born to married mothers to live in a cohabiting household. The percentage of women ages 19−44 who had ever cohabited increased from 45% in 1995 to 54% in 2002.
In 2002, 63% of women who graduate from high school were found to spend some time cohabiting, compared to only 45% of women with a 4-year college degree. Cohabiting couples who have children often get married. One study found that children born of parents who cohabit are 90% more likely to end up living in households with married parents than children born to single mothers. 67% of unmarried Hispanic mothers are expected to marry, while 40% of African American mothers are expected to marry.
Studies have found that religious affiliation correlates with cohabitation and marriage entry. People frequently cite religious reasons for their opposition to cohabitation. The Roman Catholic Church and many mainstream Protestant denominations around the world oppose cohabitation and consider it to be the sin of fornication. However, others, such as the Anglican Church "welcome cohabiting couples in the Church and encourage them to regard cohabitation as a prelude to Christian marriage."
Religion can also lead to societal pressures against cohabitation especially within highly religious communities. Some couples may refrain from cohabitation because one or both partners fear disappointing or alienating conservative family members. Young adults who grew up in families that oppose cohabitation have lower rates than their peers. The increase in cohabitation in the United States and other developed nations has been linked to the secularization of those countries. Researchers have noted that changes in the religious demographics of a society have accompanied the rise in cohabitation.
Non-marital and same-sex relationships are forbidden by the Islamic law of Zina, and cohabitation is against the law in many Muslim majority countries including Saudi Arabia, Pakistan, Afghanistan, Iran, Kuwait, Maldives, Morocco, Oman, Mauritania, United Arab Emirates, Sudan, and Yemen.
Effects on marriage and family life
Likelihood of split
As premarital cohabitation occurs more frequently, there are more research participants which has led to a greater understanding of the factors of stable, lasting relationships. This has led to more possibilities and studies. The early studies, performed decades ago, did not account for the multiple factors that comprise the stability of a relationship. Researchers have found evidence that previous research into the effects of premarital cohabitation does not apply to modern relationships. New results have shown there are many factors that lead to divorce that are not cohabitation.
Conflicting studies on the effect of cohabitation on subsequent marriage have been published. In countries where the majority of people disapprove of unmarried individuals living together, or a minority of the population cohabits before marriage, marriages resulting from cohabitation are more prone to divorce. But in a study on European countries, those where around half of the population cohabits before marriage, cohabitation is not selective of divorce-prone individuals, and no difference in couples that have cohabited before and after marriage is observed. In countries such as Italy, the increased risk of marital disruption for people who experienced premarital cohabitation can be entirely attributed to the selection of the most divorce-prone into cohabitation.
In 2002 the CDC found that for married couples the percentage of the relationship ending after 5 years is 20%, for unmarried cohabitators the percentage is 49%. After 10 years the percentage for the relationship to end is 33% for married couples and 62% for unmarried cohabitators.   One German study found that in regions with high rates of childbirth to cohabitating parents, no negative effect is observed in cohabitation. The study states "union stability of cohabiting mothers is positively related to their prevalence."
A 2004 study of 136 couples (272 individuals) from researchers at the University of Denver found differences among couples that cohabited before engagement, after engagement, or not until marriage. The longitudinal study collected survey data collected before marriage and 10 months into marriage, with findings suggesting those who cohabit before engagement are at greater risk for poor marital outcomes than those who cohabit only after engagement or at marriage. A follow-up survey by the researches of over 1,000 married men and women married in the past 10 years found those who moved in with a lover before engagement or marriage reported significantly lower quality marriages and a greater possibility of a separation than other couples.  About 20 percent of those who cohabited before getting engaged had since suggested splitting - compared with only 12 percent of those who only moved in together after getting engaged and 10 percent who did not cohabit prior to marriage.
The researchers from Denver suggest that relationships with pre-engagement cohabitation "may wind up sliding into marriage", whereas those that only cohabit post engagement or marriage make a more clear decision. This could explain their 2006 study of 197 heterosexual couples finding that men who cohabited with their spouse before engagement were less dedicated than men who cohabited only after engagement or not at all before marriage. In some heterosexual couples, women are more likely to understand cohabitation as an intermediary step preceding marriage, and men more likely to perceive it without an explicit connection to marriage.  
An analysis of data from the CDC's National Survey of Family Growth data from 1988, 1995, and 2002 suggests that the positive relationship between premarital cohabitation and marital instability has weakened for more recent birth and marriage cohorts, as the total number of couples cohabitating before marriage has increased.
Later CDC work found that between 2002 and 2006-2010, the number of couples in opposite-sex cohabiting relationships increased from 9.0% to 11.2% for women, and from 9.2% to 12.2% for men. Drawing on the 2006-2008 data, Princeton university researchers examined whether and to what extent variation in premarital cohabitation experiences influence marital stability. They found that the relationship between cohabitation and marital instability is complex and depends in part on marriage cohort, race/ethnicity, and marriage plans. Their analyses reveal that a 'cohabitation effect' exists only for women married prior to 1996, and that, until marriage plans are considered, there is no cohabitation effect among women married since 1996. 
Recent research from 2011 by the Pew Research Center has found that the number of couples that cohabit before marriage has increased. 44% of adults (and more than half of 30- to 49-year-olds) say they have cohabited at some point. Nearly two-thirds of adults who ever cohabited (64%) say they thought about it as a step toward marriage. The report also notes a trend toward rising public acceptance of cohabiting couples over the years. Most Americans now say the rise in unmarried couples living together either makes no difference to society (46%) or is good for society (9%). 
A 2012 study found that, among cohabiting individuals, those who were engaged prior to cohabitation or had "definite plans for marriage" were linked to lower risks of marital instability among women, but the relationship was not observed with men.
One study on low to moderate income couples living with minor children found that respondents who became sexually involved within the first month of their relationship were correlated to lower scores of relationship quality among women. Another study found respondents to a mail-in survey self-reported higher levels of commitment in the cohabiting group, as well as lower relationship satisfaction and more negative communication.
Abuse and infidelity
University of Chicago sociologist Linda Waite  found that "16 percent of cohabiting women reported that arguments with their partners became physical during the past year, while only 5 percent of married women had similar experiences." Most cohabiting couples have a faithful relationship, but Waite's surveys also demonstrated that 20 percent of cohabiting women reported having secondary sex partners, compared to only 4 percent of married women. A 1992 study found that male members of heterosexual couples with children are less likely to be a part of the childcare but half the time they are responsible for child abuse.
According to an article by Judith Treas and Deirdre Giesen, cohabiting couples are twice as likely to experience infidelity within the relationship than married couples.
In the United States, married couples that submit a combined tax return may face a marriage penalty, where tax credits for low-income single earners are not applied to the combined income. In October 1998, Senate GOP leader Trent Lott decided to pull a bill to abolish "the marriage penalty," "which in the tax code reflects the fact that married couples who both work for wages frequently pay more in taxes than if they earned the same amount of income but weren't married. And the more equal the incomes of the couple, the steeper the marriage tax penalty."  The Earned income tax credit (EITC) is cash welfare for low-income workers, but the problem is the EITC is not for married couples because they have to combine their wages, which again leads to "the marriage penalty." If couples do not get married then their wages do not have to combine and the EITC in a way is "paying for" low-income couples not to marry. Opponents of cohabitation believe that some cohabiting couples choose not to marry because they would suffer a tax penalty.
Despite the perceived disincentive to marry that the EITC provides, cohabiting couples suffer many financial losses as their unions are not recognized with the same legal and financial benefits as those who are legally married. These financial penalties can include the costs of separate insurance policies and the costs of setting up legal protections similar to those that are automatically granted by the state upon marriage.
A conflicting study, published by the National Center for Health Statistics, with a sample of 12,571 people, concludes that "those who live together after making plans to marry or getting engaged have about the same chances of divorcing as couples who never cohabited before marriage."
Additionally, William Doherty, a professor in the Department of Family Social Science at the University of Minnesota has remarked that in his research he has found that "committed cohabiting relationships seem to confer many of the benefits of marriage."
A 2003 study by the Australian Institute of Family Studies found that "The differences in measured outcomes for those from direct and indirect marriages appear to be entirely attributable to other factors."  The study concluded that the evidence suggests that premarital cohabitation has "little impact one way or the other" on the chances of any subsequent marriage surviving.
Canada laws on the recognition of unmarried cohabitation for legal purposes vary significantly by province/territory; and in addition to this, federal regulations also have an impact acrooss the country. (see Common-law marriage#Canada) Family formation has undergone significant changes in Canada during the last decades of the 20th century, but the patterns vary widely across the country, suggesting differing cultural norms in different regions. Since the mid 1990s, births to cohabiting parents have increased, particularly in Quebec. In Canada, it is difficult to obtain exact data on the percentage of births outside of marriage, due to the fact that data on the marital status of mothers is collected differently across the provinces and territories of Canada, and in some (such as Alberta) it is not broken down in detail in regard to whether the mother was legally married or not at the birth of her child. As of 2009, the statistical category of "single mothers"(defined as never married at the time of the birth) encompassed 27.2% of mothers, the category "divorced" (i.e. mothers who were unmarried at the time of birth, but had been previously married during their lives) encompassed almost 1%, while for 11.3% of mothers the marital status was unknown ("not stated"). There are, however, very significant differences by province/territory: the majority of births (as of 2009) were listed to "single mothers" in Nunavat (76%), Quebec (59%), and Northwest Territories (54.1%); by contrast, less that 20% of mothers in Ontario and British Columbia were listed in this category. In Canada, legal issues regarding cohabitation are very complicated by the fact that family law in this regard differs by province/territory, which is very confusing to the public, especially as this contrasts to criminal law which is the same across Canada, as well as to marriage and divorce law, which is also the same across the country, under the 1968 Divorce Act (Canada).
Cohabitation in the United States became common in the late 20th century. As of 2005[update], 4.85 million unmarried couples were living together, and as of 2002[update], about half of all women aged 15 to 44 had lived unmarried with a partner. In 2007, it is estimated that 6.4 million households were maintained by two opposite sex persons who said they were unmarried.  In 2012, the General Social Survey found that public disapproval of cohabitation had dropped to 20% of the population.
Researchers at the National Center for Family and Marriage Research estimated in 2011 that 66% of first marriages are entered after a period of cohabitation. According to the 2009 American Community Survey conducted by the Census Bureau, the proportion of 30-to-44-year-olds living together has almost doubled since 1999, from 4% to 7%. Fifty-eight percent of women aged 19 to 44 had ever cohabited in data collected in 2006-08, while in 1987 only 33% had. Cohabitation is more prevalent among those with less education. "Among women ages 19 to 44, 73% of those without a high school education have ever cohabited, compared with about half of women with some college (52%) or a college degree (47%)," note the Pew study's authors, Richard Fry and D'Vera Cohn.
Before the mid-20th century, laws against cohabitation, fornication, adultery and other such behaviors were common in the US (especially in Southern and Northeastern states), but these laws have been gradually abolished or struck down by courts as unconstitutional.
- "Cohabitation was almost impossible in the United States prior to the 1960s. Laws prevented unmarried couples from registering in hotels and it was very difficult for an unmarried couple to obtain a home mortgage. From 1960 to 1998, cohabitation moved from disreputable and difficult to normal and convenient." PBS: Social disruptions
As of 2013, cohabitation of unmarried couples remains illegal in four states (Mississippi, Florida, Michigan, and North Carolina), while fornication remains illegal in six states (Idaho, Utah, South Carolina, Minnesota, Massachusetts, Illinois). These laws are almost never enforced and are now believed to be unconstitutional since the legal decision Lawrence v. Texas in 2003. However, these laws may have indirect effects. For example, one consequence may be that one may not claim their boyfriend/girlfriend as a dependent (for a tax exemption), whereas in the other states it may be possible to do so after meeting 4 criteria: residency, income, support and status.
In 2006, in North Carolina, Pender County Superior Court judge Benjamin G. Alford ruled that North Carolina's cohabitation law is unconstitutional. However, the Supreme Court of North Carolina has never had the opportunity to rule on it, so the law's statewide constitutionality remains unclear.
On December 13, 2013, US Federal Judge Clark Waddoups ruled in Brown v. Buhman that the portions of Utah's anti-polygamy laws which prohibit multiple cohabitation were unconstitutional, but also allowed Utah to maintain its ban on multiple marriage licenses. Unlawful cohabitation, where prosecutors did not need to prove that a marriage ceremony had taken place (only that a couple had lived together), had been a major tool used to prosecute polygamy in Utah since the 1882 Edmunds Act.
Cohabitation in Latin America is very common, especially for young people. Indeed, although this is a largely Roman Catholic region, it has the highest rates of non-marital childbearing in the world (55–74% of all children in this region are born to unmarried parents). In Mexico, 18.7% of all couples were cohabiting as of 2005[update]. Among young people, the figures are much higher.
As of 2000, in Argentina 58% of births were to unmarried women. The percentage of births outside marriage has increased throughout Latin America during the past decades, and there is also a relation to social class: women from the lower socioeconomic strata are more likely to have children outside of marriage than those from the upper classes. Recent data shows figures for non-marital childbearing to be 74% for Colombia, 69% for Peru, 68% for Chile, 66% for Brazil and 55% for Mexico.
- In Nepal, living together is socially acceptable only after marriage. However, cohabitation is an emerging trend in urban areas of Nepal. Reports have shown that there may be significant number of unmarried couples cohabiting in cities, especially in the capital, Kathmandu. Even when the unmarried couples cohabit they either prefer to remain anonymous or pose themselves as married couple. Cohabitation is not recognized by the law of Nepal and there is no special provision to secure the right of cohabitants in Nepalese law.
- In Bangladesh cohabitation after divorce is frequently punished by the salishi system of informal courts, especially in rural areas.
- Cohabitation in India had been taboo since British rule. However, this is no longer true in large cities, but is not often found in rural areas which are more conservative. Live-in relationships are legal in India. Recent Indian court rulings have ascribed some rights to long-term cohabiting partners. Female live-in partners have economic rights under Protection of Women from Domestic Violence Act 2005 subject to following conditions as laid by Honourable Supreme Court of India in case of D. Velusamy v D. Patchaiammal:
(a) The couple must hold themselves out to society as being akin to spouses. (b) They must be of legal age to marry. (c) They must be otherwise qualified to enter into a legal marriage, including being unmarried. (d) They must have voluntarily cohabited and held themselves out to the world as being akin to spouses for a significant period of time.
- In Indonesia, an Islamic penal code proposed in 2005 would have made cohabitation punishable by up to two years in prison. The practice is still frowned upon, and many hotels and boarding houses have been raided by police for allowed unmarried couples to share a room.
- In Japan, according to M. Iwasawa at the National Institute of Population and Social Security Research, less than 3% of females between 25-29 are currently cohabiting, but more than 1 in 5 have had some experience of an unmarried partnership, including cohabitation. A more recent Iwasawa study has shown that there has been a recent emergence of non-marital cohabitation. Couples born in the 1950s cohort showed an incidence of cohabitation of 11.8%, where the 1960s and 1970s cohorts showed cohabitation rates of 30%, and 53.9% respectively. The split between urban and rural residence for people who had cohabited is indicates 68.8% were urban and 31.2% were rural.
- In the Philippines, around 2.4 million Filipinos were cohabiting as of 2004[update]. The 2000 census placed the percentage of cohabiting couples at 19%. The majority of individuals are between the ages of 20-24. Poverty was often the main factor in decision to cohabit.
- In the European Union, cohabitation is very common. In 2012, 40% of all births in the EU 28 countries were extramarital.The percentage of births outside marriage has increased dramatically in many European countries during the last few decades, as can be seen in the figure. The majority of births occur outside of marriage (figures as of 2012, except where otherwise stipulated) in the following European countries: Iceland (66.9%), Bulgaria (58.8% in 2014), Estonia (58.4%), Slovenia (58% - in 2013), France (57.1% in 2013), Norway (55.2% in 2013), Sweden (54.4% in 2013), Belgium (52.3%), and Denmark (51.5% in 2013).
- While couples of all ages cohabit, the phenomenon is much more common among younger people. In late 2005, 21% of families in Finland consisted of cohabiting couples (all age groups). Of couples with children, 18% were cohabiting. Of ages 18 and above in 2003, 13.4% were cohabitating. Generally, cohabitation amongst Finns is most common for people under 30. Legal obstacles for cohabitation were removed in 1926 in a reform of the Criminal Code, while the phenomenon was socially accepted much later on. In France, 17.5% of couples were cohabiting as of 1999.
In Britain today, nearly half of babies are born to people who are not married (in the United Kingdom 47.3% in 2011; in Scotland in 2012 the proportion was 51.3%). It is estimated that by 2016, the majority of births in the UK will be to unmarried parents. The Victorian era of the late 19th century is famous for the Victorian standards of personal morality. Historians generally agree that the middle classes held high personal moral standards and rejected cohabitation. They have debated whether the working classes followed suit. Moralists in the late 19th century such as Henry Mayhew decried high levels of cohabitation without marriage and illegitimate births in London slums. However new research using computerized matching of data files shows that the rates of cohabitation were quite low—under 5% -- for the working class and the urban poor.
In response to the increase in cohabitation, several legal changes were made in the UK in recent years. In Scotland, the Family Law (Scotland) Act 2006 provides cohabitants with some limited rights. In addition, since 2003 in England and Wales, 2002 in Northern Ireland, and 2006 in Scotland, an unmarried father has parental responsibility if he is listed on the birth certificate.
There are differences in extramarital births by region; in 2012, the highest percentage of births to unmarried women were in North East of England at 59%, and in Wales at 58%; and the lowest in London (36%) and in Northern Ireland (42%). One of the reasons cited for the lower percentage of extramarital births in London is the high number of immigrants from conservative world regions who reside in the city. Younger mothers are more likely to unmarried: in 2011, 96% of mothers aged under 20 were unmarried, compared to only 31% of mothers in their 30s. A study dealing with births that occurred in the year 2000 found several social and personal characteristics of cohabiting vs. married parents: married mothers are most likely to be Asian and least likely Black Caribbean; married mothers are more religious; married mothers and fathers are more educated (they are more than twice as likely to have a degree than cohabiting parents); married fathers are twice as likely to have a professional occupation as cohabiting fathers; married parents have a better financial situation; married mothers are older and are more likely to have had the birth planned. A 2006 study found that cohabiting couples, with and without children, are the fastest-growing family type in the UK. Cohabiting couples who live with their children are more common in the North of England than in the South.
In the UK, in recent years, the falling marriage rates and increased births outside of marriage have become a political issue, with questions of whether the government should promote marriage (ie. though tax benefits or public campaigns) or whether it should focus on the status of a parent, rather than that of a spouse; with the former view being endorsed by the Conservative Party, and the latter by the Labour Party and the Liberal Democrats. The are also differences between England and Wales and Scotland, with the latter being more accepting of cohabitation.
In Bulgaria, there has been a rapid increase in cohabitation after the fall of communism. The transition from communism to market economy had a great impact on the demographic behavior of the population. After the fall of communism, the legal and social pressure to get married has declined, and the population has started to experience new life styles. As of 2014, 58.8% of children were born to unmarried mothers.
As in other western societies, patterns of family life have been changing in Germany during the past decades. This has not created a moral panic, but has been seen more as an ongoing social evolution. Cohabitation, divorce rates, lone parents, and people's reluctance to marry or to have children have increased. However, when it comes to family formation and long term cohabitation instead of marriage, there are very strong differences between the regions of former West Germany and East Germany (which was formally communist). Significantly more children are born out of wedlock in eastern Germany than in western Germany. In 2009, in eastern Germany 61% of births were to unmarried women, while in western Germany only 27% were. A longitudinal survey found that union stability was significantly higher for cohabiting mothers in eastern Germany than western Germany, due to differences in German society.
In Greece, family dynamics remain conservative. The principal form of partnership is marriage, and extramarital childbearing and long term cohabitation are not widespread. For instance, in 2012 only 7.6% of births were outside of marriage, which is the lowest percentage among the European Union member states. Religion in Greece plays a very important role in society; it was only in 1983 that civil marriage was introduced in the country. The new laws modernized family law, abolished dowry, and provided for equal rights for "illegitimate" children. According to a 2008 study: "Greek society still remains conservative and birthing outside marriage, although protected by law, remains in many ways socially unacceptable." Despite this, there have been further legal changes providing for a modern "western" outlook on family life, including Law 3719/2008 dealing with family issues, including Article 14 of the law, which reduced the separation period (necessary before a divorce in certain circumstances) from 4 years to 2 years.
The literature on second demographic transition argues as well that highly educated women are more prone to engage in cohabitation, although the reasons are different: they are less concerned with respecting the societal norms. Some scholars argued that cohabitation is very similar to being single in the sense of not giving up independence and personal autonomy.
In Hungary, cohabitation was an uncommon phenomenon until the late 1980s and it was largely confined to the divorced or widowed individuals. Among the ethnic groups, Gypsy/Rroma tended to have higher rates of cohabitation, mainly due to their reluctance to register their marriages officially. Since the 1980s, cohabitation became much more frequent among all ethnic groups and it has been argued to have strongly influenced the decline in fertility. As of 2013, 45.6% of births were to unmarried women.
Cohabitation in Ireland has increased in recent years, and 36.3% of births were to unmarried women in 2014. Until a few decades ago, women who had children outside of marriage were severely stigmatized and often detained in Magdalene laundries. The Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 gives some rights to unmarried cohabitants (under this act same-sex couples can enter into civil partnerships, while long term unmarried couples - both heterosexual and same sex - who have not registered their relation have some limited rights and obligations).
In Italy, where Roman Catholicism has a strong presence, cohabitation is not as common as in other areas of Europe, yet it has increased in recent years. There are significant regional differences, with non-marital unions being more common in the North of the country than in Southern Italy. A study published in 2006 found that long term cohabitation was still novel to Italy, though more common among young people. As of 2012, the share of births outside of marriage was 24.8%, but this varied significantly by region from highs between 33%-44% in Nordic regions like the Aosta Valley, the South Tyrol, Trentino-Alto Adige, Emilia-Romagna and Liguria, to lows between 11%-19% in Southern regions like Basilicata, Calabria, Campania, Molise, Apulia and Sicily. Urban versus rural living also plays a role in cohabitation arrangements, a 2001 study described cohabitation in Italy as "still rare outside of large cities".
Dutch researchers have found that research participants see cohabitation as a risk-reduction strategy in a country with high relationship instability. As of 2013, 47.4% births were to unmarried women.
In Poland, after the fall of communism, the influence of religion has increased. Indeed, Poland has one of the most religious population in Europe (see Religion in Europe). Cohabitation in Poland has traditionally been associated with the lower social classes, but in recent years an increase in cohabitation has also been seen among the more educated. Family structure in Poland remains still traditional: marriages are still contracted at relatively young ages, and the incidence of divorce is relatively low (by European standards). The exact incidence of cohabitation is not well established, but it is quite low compared to other Western countries. However, Poland is not completely 'immune' to Western influence, and in 2013, 23.4% of children were born outside of marriage.
Slovakia is more conservative and religious than neighboring Czech Republic. The principal form of partnership is marriage, but extramarital childbearing and cohabitation are slowly spreading, yet this trend is not without criticism; and some view these phenomena as a threat to traditional values. In 2013, 37% of births were to unmarried women. Fertility in Slovakia has been described in a 2008 study as "between tradition and modernity".
Spanish society has undergone major changes since the fall of the Franco regime. Important legal changes which have occurred throughout the 1970s and 1980s include legalization of divorce, decriminalization of adultery, gender equality in family law, and removing the ban on contraception. The liberalization of the political climate has allowed for alternative family formation. In the mid-1990s, cohabitation in Spain was still described as a "marginal" phenomenon, but since the 1990s, cohabitation has increased dramatically in Spain. In Spain in 2013, 40.9% of births were outside of marriage. As in other countries, there are regional differences: in 2011, in Catalonia the figure was 42% - highest in mainland Spain in that year (Canary Islands 59% and Balearic Islands 43.5% were highest) while in Murcia it was only 30.7% (lowest).
In Russia, many couples express a desire to cohabit before marriage, then register a civil marriage, and then at a later stage have a large church wedding.
- The cohabitation rate in Asian countries is much lower than in Europe or Latin America. In some parts of the continent it is however becoming more common for young people. As of 1994, the rate of premarital cohabitation in Israel was 25%.
- Cohabitation is illegal according to sharia law (for the countries that enforce it). It is also discouraged by the Jewish Halacha, however, there is no country abiding by the Jewish Halacha (not even Israel).
Aside from the law, cohabiting remains very much taboo across the region. Nevertheless, the issue of cohabitation of unmarried couples has featured in some Tunisian movies, such as Les Silences du Palais (1994)
- In Australia, 22% of couples were cohabiting as of 2005[update]. 78% of couples who marry have lived together beforehand in 2008, rising from 16% in 1975. As of 2013, of all births, 34% were to unmarried women. Australia recognizes de facto relationships.
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Some Protestant groups, although preferring sex to exist exclusively in a married relationship, understand times have changed. These Christians are prepared to accept cohabitation if it is a prelude to marriage.
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