What is Biff's attitude?

Biff is a drifter who demonstrates little sense of maturity or responsibility. He moves from job to job without any particular plan, and is most content working jobs that use his physicality but do not offer any hope for a stable future. Biff is self-destructive, ruining every job opportunity that he might have, and realizes his own failure. He is aware that he is a disappointment and an embarrassment to his father, who holds great aspirations for his son. Biff feels that he is just a boy and must take steps to demonstrate a shift into the maturity of adulthood.