I was a virgin until i was only a few weeks shy of my 18th birthday.
Was I DYING to get laid? No, I was busy with school and other things. I was enjoying my life at the time. Had a girlfriend dropped in my lap sooner, I'd likely have lost it earlier, but I don't care either way. Once I had sex, I realized how great it was and now I have it (like most people) as often as possible.
I personally know a couple of people who are waiting for marriage before having sex. I think it's awesome, I totally support it, that's one more bond they get to make on their wedding day/night (which if they're reading this, you know who you are, and I better be invited

).