If a ref has ref'd 100 to 200 highly competitive games......he would know that a play stoppage due to injury does not warrant a free kick given to the team that had possession at the time of the injury (injury was away from the ball).
A ref that has ref'd 100 to 200 highly competitive games would know the difference between a foul in the box and competitive play.
A ref that has ref'd 100 to 200 highly competitive games would know the difference between a penalty kick and a direct kick. I once saw a ref take the ball from one end of the field to the other and award a PK for a player running into the goalie.
I could go on and on, but there is a high percentage of high school and middle school refs that don't have a clue about the game. After the 100th game, anyone that took the job serious would get it right most of the time. I can live with mistakes, but mistakes that determine the outcome of games is not fair to the players, coaches, or fans.
There are great refs out there. I have seen them. I think there should be some standard that the poor ones should be held accountable for. It wouldn't take much. Just a blind evaluation here and there.