I would say the driving force here is that the consequences of sex appears to young women be removed .
Sex is not something "Men" desire.
Sex is something "People" desire.
Go to any 12 step program for addicts and you will find it full of women who couldn't control their libido any more than whatever else they were abusing.
The lesbian subculture is just as promiscuous as the gay male sub culture or the marital swapping subculture.
For thousands of years consequences alone kept women from being as promiscuous in general as men. The reason the left is so panicked about states defunding Planned Parenthood is that sexual license has long been not just a means to an end but a primary gal for many of their constituents. If there is a consequence for sex - however small, then people begin removing themselves from the meat market.
I don't disagree. However, as much as women want to deny it, men and women are different.
Women casually give away sex hoping something will "click" and they will get love out of the deal. Men have casual sex because it feels good. They have no aim for it to turn into anything else. If a man wants to get married, he doesn't have to give away sex to get someone to agree to marry. Women too often think they do.
By the way, I'm speaking of somewhat mentally and emotionally "normal" men and woman. Sex addicts in a 12 step program aren't typical. I doubt that adding back in the "consequences" of casual sex would stop the sex addict.