My parent has never said anything about sex, except to use protection. All my family keep telling me that, which is good. If I had wanted to wait til marriage for sex, I would have. It just didn't appeal to me. I don't put it about at all. I never had any negative thoughts about my virginity, I was no longer a virgin at age 19. I have had sex with two people, one was half sex and drunken, the other all times I was sober. My mate is 20 (21 tomorrow) and has had sex with 8 people. I think all one night stands. He's the most promiscous of all of 'us'.
I know -someone- who is a virgin and they are not thought of any less of a person for not having given themselves away so easily :P
I don't value virginity as much as I value intelligence, common sense and a strong sense of morality; standing by your values. Which are all linked.