system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] how did superman age when he was young but doesn't seem to age now that he is older?
gpt
Maturing and aging are actually independent processes. There are kids with a condition that causes them to age prematurely and it doesn't make them grow any faster, there are adults with a condition that makes them stop physically maturing too early but it does not give them biological immortality.

Ergo it is quite safe to assume that people of his species mature at a rate equal to humans but do not age as quickly.