I don't see the reason why they would want to follow me. I have no posts right now, and I never talk to them and don't plan on it. So far I've only accepted follow requests from people that I've actually spoken words to (and followed them back), but now I'm getting requests from people at school who I've never had a conversation with. I know who they are and they know who I am, we are somewhat familiar to each other in that way. But I never talk to them, so why should I accept and follow back?