i don't believe in it, though i used to. i started at 12 and regretted giving so much of myself away. i was used and used others. i hated myself, and created a stronger taboo against sex in my head-i never saw it as a healthy expression of love until very recently. so when i started seeing my current boyfriend, we did fool around a bit, but i waited until he turned 17 (legal age where we live) to sleep with him.
everyone who says it's the fault of the parents and that people have to deal with the consequences, i get where you're coming from. but education sucks, and it always has. parents, despite having produced children, don't know that much better than anyone else what's "right" about sex. in a perfect world, people would know how to talk about it. but this world is a flawed batch of mistakes, and people keep making the same mistakes. so i think it is good that there are laws. even if people are deterred for legal reasons, it still serves as a deterrent until they are old enough to have put some thought into it.