If you actually have any friends irl (I'm gonna be outrageous and say most people here hating on fb don't), you'll find that when you grow older and everyone starts leaving for university, work, whatever, it's a fantastic way to keep in touch and organise get togethers and whatever.
Sure there's plenty of bullstuff on there, but it's only there because you liked that page or added that person, all you need to do is unlike/remove, it's not the fault of Facebook. Also Skype being the only social "tool" you need, lol, people change their Skype name, mobile number, email and whatever but no one really deletes or changes their fb account (if they're someone anyone cares about anyway lol)
also just saw this

absolute hero lmao