Despite Ali's constant efforts in trying to join the cool group of kids in his school, he gets rejected. He then resorts to other ways of gaining popularity in his own special way. Through being true to himself, he finds the ultimate way of achieving the affirmations he needed. 
Children need to feel comfortable with what makes them different, it could be a small detail in your character that makes you shine the brightest. No one needs to imitate another, when we were all gifted with the most special gift of being no one else but ourselves.