[jwalburg]

This only works if a great majority of women refuse premarital sex. Then, women have a cartel, and the value of a relationship with them goes up. That cartel started breaking up in the 60s, I think.

[Lauren BaRecall]

For societal change it would have to be a movement. But pre-marital abstinence is also effective in individual situations. If a man is into a woman, under those conditions a relationship can really grow, if he's not, then he'll leave (which is not a loss).