The problem with the model you refer to is that making a man wait until after marriage for sex is no guarantee he would stay anyway.
One thing to get him, quite another to keep him.
no fault divorce means (absent one of the minority community property states, and even that is fading) as long as you divoce quickly the consequences are aking to renting vs leasing.
I’m talking about girls who give away to anyone, anytime, for absolutely nothing! They don’t respect themselves, why would they imagine that any man would respect THEM?