Talk:Aang vs. Danny Phantom/@comment-118.101.195.236-20150516103755/@comment-27885906-20160528160030

@Strunton

You're right they are technically still ghosts, but ghosts in Danny Phantom are quite unique from ghosts in other media, as in what abilities they have, and in the fact that they can age or have children, as is shown in the Ultimate Enemy. (Box Lunch is the daughter of the Box Ghost and the Lunch Lady, which I don't really wanna think about how that works xD )

My point is, even if the spirits in Avatar are technically also ghosts, that doesn't mean they have the same abilities or weaknesses. Unless of course you have an explanation why Iroh hasn't aged further ever since he came in the spirit world in LOK.