Oh, I forgot to add this.
Free country, you can be a fan of what ever team you choose, but for me personally, I know of only 2 good reasons to change the school/team that you're a fan of.
A: If you wind up going to a college other than the one you've been a fan of all your life.
B: You meet and start dating this really hot chick that is a fan of a different school/team and wants you to be a fan fan of that same school/team. It's okay to change then also, but only while you a around the really hot chick. When are not around her, then you keep your allegiance with your original team.