Is facebook and twitter a necessity?

[aien]

So, I have recently found myself in an awkward social situation. I have been called anti-social, a motherf****r, and such for saying I do not have facebook nor twitter. I do not like facebook nor twitter. I text and skype with the friends I have and that's fine for me. I do not understand the facebook hype though, I read some articles that pick on people without a facebook page and make them look like psychopaths...