re: NIL will land some of these young stars in career ending hot water....

There no doubt will be kids who drop out in that 1st year after getting a serious advance. But, they will likely also have clauses in their contracts that void them if they do. I cant see a major endorsement from Nike being awarded to a college player who immediately decides to drop out of college or rage all night long. they're going to be on a short leash imo.