Older kids dont belong on the field, no matter the position. If you cant find a goalie of the same age then you don't play the game. To say a good goalie cant make a HUGE difference in a game makes me think your kids team hasn't had the benefit of a truly gifted goalie. Whether an older player is scoring points for your sons team, or in the case of a goalie, blocking points for the other team the result is the same, an unfair advantage provided by cheating and using older kids. If you cant find a goalie why not look a year below? It always seems that people solve the problem of lack of players by reaching up a year instead of pulling a player up from a year younger team.