If I hadn't had a FB account created for me back in 2004/2005 (iirc), then I wouldn't have bothered with FB at all - but I was treated to an account by a friend (when they had no email verification); so decided to change the password and use it - and did, until 4 months ago. Twitter, Instgram... never bothered with them. Frankly, I feel that 'social media' is very narcissistic, and those two are the worst for it.
Deleting my FB account was liberating, as it becomes a thing you just do through habit - like smoking I guess. You end up checking it first thing in the morning, and often last thing at night - and all you do, is watch other people's lives, or see endless **** being spewed. I'll miss the laughs from You're So Council, and other groups like that, but I've got better things to do with my time.