Here is a graph of graduation rates for each team in each conference in D-1 College Football.
https://gtswarm.com/threads/graduation-rates-by-conference.27801/
Obviously, they are not all getting degrees in mechanical engineering, the graph shows at least they are learning something.
It’s a myth that all college football players do is show and play in games.
Tim Green was the opposite. He was the captain of the SU football team. He had a 4.0 average in Computer Science. I was in a couple classes with him. He was a year behind me. He was drafted and played several years for the Atlanta Falcons. Then wrote multiple best selling novels after that. He is now in a wheel chair with ALS.