Avatar lord of the elements question?

There are avatar lord of the elements where Aang was still a child but I saw something like that there's not a part where he is already grown up I now ask myself the question of how the film is called where he is grown up you can do that on netflix look?

In the episode "Avatar: The Legend of Korra" Aang appears a few times as an adult.

The series is not available from Netflix, but from Prime Video.

At hdfilme.de you can watch that too!

That would be the legend of Korra, the avatar after Aang. There she comes into conversation with him a few times in the spirit world and sometimes flashbacks are shown by him during his lifetime. Doesn't exist on Netflix yet

OK. But illegal.