You do not have to go to college at all in order to become a NBA player. Most players are picked from college teams though.
I think you have to spend approx. 5 or 6 years in collage to become a CSI.
Dwyane Wade left after 3 years at Marquette to become an NBA player.
I think 12 years in collage
4 collage 4 medical school 3 to 6 residency
I believe 4.
4 years because they have to be good lawyers
you have to go to collage for 7 to 8 years to study it