This goes for both players and parents. It is very important that when playing a sport, that you learn the rules of the game. It is helpful to all those involved involved in the game. It's important to players so they know the game they play in. Rules may slightly very between leagues, age level, tournaments, etc. When I was in second and third grade my coach printed out all the rules and we would go over it in portions for the first 10 min of practise each week. It is also important for parents to understand it as Well. It will help parents be able To explain if the their kids have questions. It is also important so they understand why the ref blows his whistle.
Tip from former Division I collegiate soccer goal keeper, Annalise (Larkin) Ball.