system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Why did Bruce Wayne spend years training in martial arts before he knew that he wanted to be Batman? What was his motivation as a young man?

Here's my understanding of Batman's origin.

He witnesses his parents get shot as a child. As a young adult, he travels the world training to be one of the greatest fighters of all time. After a number of years, he returns to Gotham. At first, he's not sure what he wants to do. But then, he witnesses a bat crash through his window. Upon seeing this, it occurs to him that criminals are a "superstitious cowardly lot". He decides to dress as a bat in order to frighten criminals and clean up the streets of Gotham. Hence, he begins his career as Batman.

But, what exactly was his motivation during the years when he was training to be a fighter? He apparently didn't decide to become a super hero until shortly after returning to Gotham. So, why all the training? What was going through the mind of 20 year old Bruce Wayne as he was learning martial arts in Asia? What was his plan?
gpt
IIRC, his intention was always to fight crime, but as Bruce Wayne. It was only as an adult that he realized he needed a disguise. When the bat crashed through his window, it gave him the perfect inspiration for a disguise that would be both effective and intimidating.