What is your opinion of Hazelitt's son from a reading his fathers letter

I think his son, like any young man. seems impressionable and innocent to world. At the start of the essay, a father writes a letter and tells his son that he is about to enter a new world. His son is about to take admission in school. He tells his son that he might not be able to support his son due to his health issues. The boy's father was worried about his child because the school's atmosphere is new for his son. The father gives advice to his son on how he should behave in school and in the world. His father tells him that his conduct is very important for his character.