Conversation so far:
What year did Bruce Lee leave Hong Kong?
In April 1959, Bruce Lee's parents decided to send him to the United States to stay with his older sister, Agnes Lee
Was Bruce Lee young when he left Hong Kong?
Bruce Lee was 18 when he left Hong Kong
How did Bruce Lee feel about leaving?
What did Bruce Lee do after he left Hong Kong?
Bruce Lee taught friends he met in Seattle, starting with Judo practitioner Jesse Glover, who continued to teach some of Lee's early techniques.
What else did you find interesting in this Bruce Lee 1959 to 1964: Continuous studies and martial arts breakthrough section aside from Lee teaching friends he met in Seattle, starting with Judo practitioner Jesse Glover, some of Lee's early techniques?
Until his late teens, Bruce Lee's street fights became more frequent and included beating the son of a feared triad family.

Question: Why did he fight?
Self-contained rewrite: Why did Bruce Lee fight?