The growing popularity of the automobile, pornography, sex scenes in movies and corresponding changes in dating practices also caused premarital sex to become more prevalent. 

Alfred Kinsey found that American women who became sexually mature during the 1920s were much less likely to be virgins at marriage than those who became mature before World War I. 

A majority of women during the 1920s under the age of 30 or 30 were nonetheless virgins at marriage, however; and, half of those who were not virgins only had sex with their fiancees.

Beginning in the 1950s, the stigma (moral teachings which enlightened people about the negative effects) attached to pre-marital sex diminished.

The emotional state of narcissism, and the act of love which derives from the mind set of Hollywood movies and celebrities, began to become enough for a reason to practice sex, instead of marriage or engagement. 

By 2000, roughly a third of couples in the United States had lived together prior to marriage. Premarital sex has become, if not acceptable, tolerable and a trend.

In a 2005 Kaiser Family Foundation study of US teenagers, 29% of teens reported feeling pressure to have sex, 33% of sexually active teens reported “being in a relationship where they felt things were moving too fast sexually”, and 24% had “done something sexual they didn’t really want to do”.

Several polls have indicated peer pressure as a factor in encouraging both girls and boys to have sex. 

The increased sexual activity among adolescents is manifested in increased teenage pregnancies and an increase in sexually transmitted diseases.


Article taken from wikipedia.org