Everyone is entitled to their opinion, but not sure how you can frown on a kid wanting a little "attention/celebration" while choosing a school. I bet most of us had graduation parties, wedding receptions, etc....
** Getting a football scholly to a big time program is something to be extremely proud of and he should be allowed to "celebrate" it. The few times that my players have had a chance to go to a big time school, as a coach, I encouraged a celebration with parents/newspaper/student body there......great publicity for your school and team. Plus, I have always wondered why some think it is a crime to give kids rewards/awards/attention.
If he wants to do the "hat" thing infront of student body, then go for it. He has "earned" that right. Believe me, the one thing I am pretty sure of, is that Bo can recognize "character" and he will recruit team players, not self-centered.