How Biff shows Responsibility in "The Death of a Salesman" by Arthur Miller?

Have you ever felt as if you do not know what to do with your life? Everyone does sometimes, but certain people are like that their whole life. These people are irresponsible and depend on others to survive. In 'Death of a Salesman', Biff is one of these people. He is irresponsible because he depends on Happy, depends on Willy, and does not know what to do for a living.
Biff looks up on Happy as an example of good life. It seems to him that Happy's life is stable and successful. …