What can you do with flexibility?

This is sort of an awkward question, I know haha. But I mean, I'm really flexible. I can put my forehead to my knee and I've never stretched before. I'm also really close to the splits. Yet I've never really stretched. So I'm wondering what things I could join where this would be handy, because I'm looking to join something this coming school year. I'm 15 and I'll be a sophomore this year. So yes, what things could I join?