Many men want it both ways. They want casual sex for themselves but also want to marry someone without a casual sex history. How they get to know someone like that is a mystery because many only date those who will sleep with them on the first or second date.
It's called *hypocrisy*, and many men will never see it.
Where they think this vast pool of virgin women is going to come from when they are all sleeping around with everyone they meet is a mystery.
Nope, no mystery here for them. Unless they're total 'tards, they understand quite well that, when it's time to marry (if they even want to marry), they have to adopt a radically different targeting system and dating strategy. They namely have to boost their standards, while simultaneously exercising greater patience and/or entirely foregoing premarital sex.
In the case of loose women who, after a long and tumultuous "dating" history, decide that it's time to marry, they have to dramatically lower their standards.
And even then, it might not work, because they are already past their prime / are "used goods" (often with several illegitimate children in tow).
Regards,