I'm 14 and not allowed to have social media accounts?

[SuperNova]

In addition to talking to her about it, I'd have her maybe talk to your friends parents who let them use twiter and fb. I personally wouldn't fight to get a twitter too much since not a whole lot happens on there and there's still a ton of people who don't have one. For fb it also might make her feel better if you have her make an account and add her as a friend so she can see what you're doing and it might make her feel better (I know it's annoying but it's better than not having one).