Walter finally shows he’s has become a man when he

when he going to the gym

Explanation:

he he became a man we got to the gym because that's what matters go so you multiply a man by a man

Walter had grown up in Mama's house with Mama making the decisions for the family. Walter has been a bitter black man, trying to make it in a white man's world.

Explanation: when i grow up i am going to be is  a singer