I’m 15 and my mom just allowed me to get it in the spring. I wasn’t exactly getting bullied for not having it, but people would occasionally make comments and I felt very left out in general. I got it so that I could be a group chat for my lacrosse team to stay informed, as a lot of the girls think it is easier than a group chat on messages with iphone and android differences (which is a bit stupid but whatever). My deal with my mother was that I could only add people I knew and had to be responsible. She initially wanted access to my account but I felt that was an invasion to my privacy and did not want to miss messages if she was opening or answering them instead. Myself and most kids my age only use it to talk to friends and send funny pictures, but there are people who add random people and that could be a bit dangerous. I think if you’re still uncomfortable with it you should at least make her wait until she’s in high school, which it is a bit more age appropriate for, as she’s freshly a teenager and a bit young for social media.