“Sports help children develop physical skills, get exercise, make friends, have fun, learn teamwork, learn to play fair, and improve self-esteem. It is important to remember that the attitudes and behavior taught to children in sports carry over to adult life. Parents should take an active role in helping their child develop good sportsmanship. To help your child get the most out of sports, you need to be actively involved. Although this involvement takes time and creates challenges for work schedules, it allows you to become more knowledgeable about the coaching, team values, behaviors, and attitudes. Your child’s behavior and attitude reflect a combination of the coaching and your discussions about good sportsmanship and fair play.”
American Academy of Child and Adolescent Pschiatry (https://www.aacap.org/AACAP/Families_and_Youth/Facts_for_Families/FFF-Guide/Children-And-Sports-061.aspx)