you dont always need college to be a football player but you have to go to college to play college football
It took 4 years of college to become a nfl profoootball player.
There are many famous college football players who gained fame following their playing career. President Gerald Ford was an outstanding college football player.
You need 3 years of College before you can submit your name in the NFL Draft
so how many years
3 to 4 years
While many NFL players are drafted from college, a college degree (while beneficial) is not required. What is required is talent and someone (scout) from the NFL to notice that talent.