system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU/Marvel] When we first see Hulk he behaves like a baby, unable to speak and operating on base instinct. By Ragnarok he behaves more like a toddler. Is his maturity based on the amount of time he has spent cumulatively as the Hulk? If given enough time would be become an “adult”?
gpt
The Hulk often manifests when Banner is in danger. Think about if you woke up and there were sirens going off and people pointing guns at you. You would probably react badly.

That’s how it is to be the Hulk most of the time.

In *Ragnorok* he got to have plenty of time when he wasn’t in “real” danger, and acclimatize to the situation. Hulk is a dude who has a real short temper and doesn’t like being messed with. He stayed as Hulk because he enjoyed the situation, so he was a bit more chill personality wise.