Go with what you feel now. If later you renounce it, then that's fine. Life is about making those choices that make you happy, and these choices don't necessarily affect other people. If people say they do, they're also wrong.
You're young, sure, but I ID'd as Aro when I was fifteen, and flopped on it later only to accept this part of me now. That may not be your story, or you may not flop at all. Maybe it's your fit, but if you ignore these parts of yourself they'll only come out later.
Wishing you the best. c: