Well, in my experience, for some reason women really don't seem to want to be the one to take a guys virginity. Infact one time I was fooling around with this girl and she actually told me point blank to go and have sex once or twice then come back to her until we go all the way
Granted she was a bit of a case.
As for men taking a womens virginity..I don't think most of them care. I don't see it stopping many of them. It's probably not the most desirable for them, but they would make do.