Finally, in order to examine the behavior of those who abstained until at least a certain age, I calculated premarital sex proportions for the subsets of men and women in the NSFG who had not yet had sex by exact ages 15, 18, and Finer said the likelihood of Americans having sex before marriage has remained stable since the s, though people now wait longer to get married and thus are sexually active as singles for extensive periods. The migration to urban centershas rapidly transformed many historically rural developing countries, such as China, Indonesia, Iran and Turkey, to predominantly urban societies. The attitudes of most developed countries concerning premarital sex in the recent past were likely not dissimilar from the current views of the less developed countries. In developing countries, in contrast, large majorities continue to consider premarital sex morally unacceptable. Females were more likely to have married by each age, reflecting the fact that women typically marry at a younger age than men. Over the past decade, increasing amounts of advocacy, funding, and programmatic effort have focused on encouraging Americans to abstain from sexual intercourse until they marry. That figure rose slightly from 4 percent in 5. Individuals whose month of first sex was earlier than their month of first marriage, or who had had sex but had not married by the time of interview, were considered to have experienced the event. These findings argue for education and interventions that provide the skills and information people need to protect themselves from unintended pregnancy and sexually transmitted diseases once they become sexually active, regardless of marital status. Generationally speaking, 47 percent of Boomers in the s thought premarital sex was not wrong at all, compared to 50 percent of GenXers in the s, and 62 percent of Millennials in the s. Among the 28 members of OECD , for example, the average percent of young couples aged 20 to 34 years who were cohabiting in was more than 40 percent Figure 2. Hispanics reported sexual attitudes similar to that of Euro-Americans. Email More than nine out of 10 Americans, men and women alike, have had premarital sex, according to a new study. Until the mids it was normal and acceptable for the bride to be pregnant at the nuptials , the later public ceremony for the marriage. Among those countries were some of the most populous, including China 58 percent , Egypt 90 percent , India 67 percent , Indonesia 97 percent , Nigeria 77 percent , Pakistan 94 percent and the Philippines 71 percent.