You don't need to eat junk food. You don't needto have a computer. You don't need to own expensive clothes. You don't need a mobile phone. You don't need most things in your life.
But that's completely irrelevant. The human race is advanced enough to not have to spend their life dedicated to making sure they get what they need to survive, like animals do. People act on what gives them pleasure and makes them happy, or will make them happy. Yeah, we don't need to have sex, but that doesn't mean we shouldn't be able to.
Your comment was rather narrow minded. What about people that don't want to get married? Are they supposed to be eternal virgins? Not everybody has religious beliefs like that, so why should they not be able to have sex if it's what they wish to do?
Some people need to face reality. It's 2008, and sex is as much a part of modern youth culture as anything else. We're all educated at school from a relatively early age about the ins and outs, no pun intended, of sex, and all the risks involved. We all know about contraception, we all know about STDs and the risk of pregnancy involved in having unprotected sex. So people have enough knowledge about it to be able to decide whether or not they want to have sex, and can then act accordingly.
There's only one problem with that, though. People are stupid. You can give them all the information in the world, but you can't make them intelligent or sensible. So if they choose to be idiotic enough to risk the consequences of unprotected sex, more fool them.
I don't see anything wrong with teenage sex. Afterall, if there was a problem with it, the age of consent would be 20+, would it not? But it's 16 here, and a lot of other places, and I think 18 is the highest. Sex is just as much about the pleasure and passion of being with someone you're attracted to as it is about symbolising your love to a spouse. If it wasn't, sex wouldn't have been made so pleasurable.
I love this kind of topic coming up on PC, since the majority of people, who are usually under the age of 15, always respond in the same way. It's funny how sheltered a life a lot of members here have.