Definitely a tough situation for his parents. Like it or not, the NFL is a long way away for any player entering college, and all it takes is 1 serious injury to derail a career and send a young man into a tailspin. At the end of the day, a first rate education is the best thing that this young man can take with him into life.
If you are intellectually honest and you look at the guys that largely squandered their chances after clawing their way into the league, you find old friends that are terrible influences at the core. My exhibit 1 would be Michael Vick, a once in a decade talent that could not shake the bad influences from home. Then you've got guys like Pac-Man, etc
The demands on D athletes are never ending, and the influence of "going nowhere" friends while a kid is hopefully trying to adapt to the new reality of being a college athlete can be debilitating. I sincerely hope that MM can tell his old buddies "no" and embrace the chance that Dantonio, who is a damn fine man and MSU have given him.
I suspect Mom and Dad are right though, but wish MM the best.