Is having a Superman case childish?

My current case for my iPhone is a Superman one. I'm 16 and about to start college, is it childish to have a Superman case? (I'm a fan of Superman)

No not really
my case is a gameboy

Haha no I just bought an Elmo one

Its not immature at all! Just think about those people that have Hello Kitty and Tinker Bell phone cases. If they can have a case like that, then so should you!
Plus, If anyone ever saw the phone, and was a superman fan then it'd give you two something to talk about.

No. Just be you!

I'm 17 and act like a kid. Probably more than you. I have a batman case. I like Sailor moon. I love sweets. Being a grown up stinks.

Get old, stay young:3