The burnout occurs earlier than when they actually quit. Softball players of this caliber have done nothing but play softball in the summer since they were probably 8 yrs. old. They have given up going swimming, taking vacations, doing fun things with their friends, etc. because of practice, travel tournaments, etc. I know I am generalizing, but from personal experience, my daughter made the same sacrifices just to play softball. She is a HS senior, and still likes the game, but came close to being burned out in HS. I look back and regret the number of tournaments she played in the summer and what she had to give up.