Good God.
Why is it so hard to believe that someone may CHOOSE to not have sex with someone either before their married, or waiting "for the right one".
Maybe it's religious reasons?
Maybe it's because you don't want your first time to be with a nasty, easy whore?
Maybe it's because you don't want STDs?
Maybe it's because you don't want to get someone pregnant that you don't truly love?
Maybe it's because you want to be someone with standards, and your check list contains more than "she has a vagina"
Maybe a commitment of love has more to do with things than just sex?
I've been waiting for my fiancee for 5 friggin' years now.

(on the left, BTW). The picture is just missing her amazing rack and rest of body, BTW.
Do I want to sex her badly? Heck yes.
Do I have every right to, given the way the logic on the site is? I did a long time ago.
Yet for all of the reasons that some would gladly give that "I should", the fact is, waiting is the smartest, best thing you can ever do. It allows you to explore so many other areas of a relationship that wind up getting choked off when all your looking for is a piece of pussy.
I'm 23 (just turned it a few days ago), and am glaringly proud of making it this far. For all we've waited, she and I have seen (from our friends):
3 divorces
2 single moms that have no means of supporting their child outside of minimum wage
Plenty of mental (and maybe even physical) spousal/relational abuse due to shacking up with someone that they didn't really know.
And that's just for starters.
Maybe it's just me, but I don't want that. I have a fiancee that is just about 2 steps away from heaven. She plays video games, demands Taco Bell over Olive Garden, forces me to preorder her games like Silent Hill, is a great JRPG buddy (my entire review of Lost Odyssey is based on her game time of it), and of course is the best friend I could ask for, and a wonderful companion. Guess what? A lot of that developed because of our long term, no-sex-till-marriage decision(s) that are forcing us to explore each others' minds and emotions before the bodies, and that's the way its should be.
If you want to have casual sex, I can't stop you. But for my situation, I have an amazing person that I really feel is worth waiting for. And if you can't find someone that's worth waiting for something so intimate and precious...Then...I guess the question is how good is your relationship?