Instead of a couple not affording to get married, they can't afford not to. Apparently children aren't the drain on family life that one might think. Divorced and single women are four to five times as likely to be victims of crime, ten times more likely to be victims of rape, and three times more likely to be victims of aggravated assault. The preponderance of violence against women is perpetrated by boyfriends, cohabiting men and ex-husbands. Child abuse happens much more frequently with boyfriends, cohabiting partners and stepfathers than it does with married husbands who are biological fathers.
Married couples have more sex and enjoy it more than singles.
Compare that with slightly more than one percent of single men not cohabiting who have the same level of sexual activity. Single men are 20 times more likely to be celibate than married men. It is true that cohabiting couples have sex on average one more time a month than married couple - but they enjoy it less. Fifty percent of married men and 42 percent of married women find sex physically and emotionally satisfying. That compares to 39 percent each for cohabiting men and women.