Most NBA players are scouted from very early on (AAU), then to college for 1 year, then to NBA. They do not get a chance to learn about how to manage money (compared to a regular joe: summer job, internship, etc..).
Most of the inner city kids have a distrust of "the system" or "the man". Therefore, they would never trust their income to a players assoc.
Whats should be done is to establish a class on How to Manage Your Money 101 by the league/PA.
Here is a article from SI on 'How Athletes go Broke' http://sportsillustrated.cnn.com/vault/article/magazine/MAG1...