Yes, ordinarily players get to keep their jerseys when they leave college.
In the 1800s, specifically during the groundbreaking Harvard-Yale contest in 1875, the uniforms of football players were made of moleskins. Players were not allowed to place pads underneath their uniforms.
The exact number of Division 1 college football players is unknown. However there are a total of 80,000 college football players across all divisions.
you draft them
You can't trade players in college football, Players can though transfer schools, but when they do they are required to take one year off.
A lot of Players do because of the stress of school and football
Because the NCAA does not allow college football players to have their name in a football game.
College football season normal starts before the NFL season does. College is normally 3 weeks into their season before the pros start.
Quarterbacks, Punters and a few lineman. Most college football players are black. Most of the white players are too buzy getting an education.
I would assume it is because there is a higher probability of them being drafted into the NBA than there is for football players to be drafted into the NFL.