Well, that is GB for you, the parents are mostly conservatives and are all taboo-like... "Umm, let's wait until he's like 17 before we do the bees and stuff..." and then "You've WHAT?!"
Truth is, majority of teens learn of sex from friends, magazines and Internet, if they are uneducated, they try it without knowing the consequences.
Parents need to get off their cowardly taboo arses and educate their kids.
I've heard the schools there have an appalling sex education too.