I noticed the aging right away, and honestly, it made me laugh more than anything. Some of them look like they are already paying taxes while the story still insists only a month has passed. But I do not see it as a real problem. Everyone aged three years during the delay, and that is something no production can control. I actually prefer seeing natural aging instead of makeup trying too hard to hide it. It also makes the characters feel more grounded. Seeing Sokka suddenly tall is funny, but it also fits his personality because he always tries to act older than he is. Aang looking sharper around the jaw is also fine for me because he still moves the same way. As long as the writing keeps the characters’ behavior consistent with who they are supposed to be, I can adjust to how they look. I think people forget that teenagers change fast. One summer break can already make someone look like they skipped a year of school, so three years is going to be noticeable. For me, the aging is not immersion-breaking. It is just biology doing its job.