They understand the importance of teamwork and coordination.
They become stronger and competitive in a health manner, rather than submissive and meek.
They learn to respect other people.
They become more communicative and outgoing.
Their self-esteem gets boosted.
They get exposure to different people and situations.
They realize the importance of working hard.
Read more at Buzzle: http://www.buzzle.com/articles/children-and-sports.html