He's a mooch, parasitical to his parents and contributing nothing to the human experience.
He's also a victim because, partially, he's fallen into this state of despair because society's attitude towards checking out has become too lenient and soft to keep most these boys (and it is mostly boys) in line.
In fact, he's not even courageously stepping out of the head. No one judges him, no one really cares what he does.
A beatnik in the fifties might haves been an interesting person to talk to. Today, he's just a bum.