Early Commits in College Football

Early commitments in college football are non-binding and always have to be taken with a grain of salt.  16-18 year old boys can and will change their minds all the time.  While I have no data at my hand, my impression is that most kids who commit early stay with that commitment.  But others, such as Missouri's Blaine Gabbert, who originally signed with Nebraska but later switched to Mizzou, illustrate that commitments can be broken.

According to the KC Star, some players are committing earlier these days, which has some folks worried.

What is to prevent a high school star from accepting even a nonbinding college offer and then, as a form of insurance against injury, passing up his senior season of prep ball while concentrating on private coaching in preparation for college ball?

That already is happening in other sports (Jeremy Tyler in basketball and Bryce Harper in baseball), although those are examples of kids opting out of high school to get ready for the pros. Here we are talking about a kid getting ready for college ball, where there are academic requirements already in place for incoming players.  If the kid (and his family) feels that private coaching is the best way to go, is it the NCAA's duty to force kids to finish high school per-se even if he can get all his ducks in order in some other manner (i.e. get a GED)?