Aang was forced to grow up, the reason he had to sacrifice his childhood was because he ran away from his responsiiblities and the world went into war because of him vanishing.
Korra was forced and lied to to stay in specific approved locations, so I don't know what you're trying to go about on here.
If Aang didn't run away the fire nation would have killed him along with the rest of the Air Nomads.