Sorry for the kinda-off-topic-thingy, but i was wondering about the aging of nobodies. Is it a canon statement that they don't age?
Example: Roxas was "born" during KH1. And, as we all probably know, Sora grew a lot in the time between KH1 and KH2. And, in the end of KH2, Sora and Roxas are about the same height. Same with Namin