I hear you. As a college professor, I'd obviously extol the virtues of a good, well-rounded higher education in producing (hopefully) thoughtful members of society.This sounds like the only value of an education is on a job resume. Not in agreement with that but not weighing in on Pro/college.
That said, it's really easy to go back and finish your degree after cashing some big ol' paychecks from the league. You don't need a college education to inherently understand the idea of taking advantage of your potential when it is peaking.