Parents should avoid cliquing off and gossiping in small groups or talking so loud that it draws attention away from practice. Do not coach your kid from the sideline. I let players and parents know that the players are the ones who will make the decisions of what to do with the ball. When parents start coaching the game from the sidelines, it shows a lack of support and trust for the coach, their child and the other players. The foundation build at practice will begin to crumble as soon as just one player begins to follow the parent's instructions instead of the team's game plan.
Team unity is affected both on and off the field.
We do not trust others. We do not believe that others also help our kids, and we do not show faith and support to kids when we do not allow them to make their own decisions on the field and work out their own problems as players and teammates. A chance to work with others toward a common goal, make decisions on the field and experience the consequences, celebrate success, and survive failures - learning from them and then moving on. Many coaches are enforcing team rules against excessive parental interference by suspending or expelling the player from the team. It is the only penalty that seems to deter this behavior.