Ego of coaches is not just found with high school coaches it also exists with all coaches including AAU coaches. You will find negative and positive coaches at all levels in public schools, AAU, traveling teams, and colleges. I agree, kids get scholarships without playing AAU. If you are good there is a lot of pressure to play year round. Most top playings really love the game and want to play beyond the HS season and they and their parents told of increased scholarship chances. I know many traveling team coaches who attend middle school games looking to meet talented players and their parents. One other point not mentioned is the money costs to join the traveling teams and play in tournaments.