From "the good doctor" why did shawn want to become a surgeon? 5 reasons.

The "The Good Doctor" american film/television series revolves around the journey of an autistic, but very intelligent doctor named Shaun. He chose to become a surgeon because of these reasons:
1. Steve, his brother, died in front of him. He got anxious that he could not do anything to save his dying brother.
2. Doctor Glassman influenced him by giving him a book about anatomy and physiology of human. This scene is seen in one of the episodes.
3. Steve always complimented him when he was still alive. He gave Shaun a gift toy scalpel or toy knife for surgery.
4. He is inspired to save lives and it may be because of his situation in life.
5. A surgeon is a job that pays a lot of money, and he wanted to buy a television for a long time.

They need to know because sometimes they have a symptom