Talk:Aang/@comment-3511228-20110402135219/@comment-3068994-20110404005840

Yue's birthday... Roku's birthday... Aang being told "on his birthday"....

Just some random birthday's that came to mind. The creators wanted to keep the characters their age to show the vast amount of turmoil they had to experience - growing emotionally / mentally over the span of time from freeing Aang to ending the War. Aging was not as much a factor in their maturing.