L.M.
Every league is different but have various rules has to how long/often each kid can play. The coaches have a hard job trying to coach, pay attention to how long each kid has been in while trying to keep the team going. At the next game, another kid may be the one sitting a lot. We once had a coach look at my son and say...have you been sitting there this whole time? He had. Coach then said, you should have said something. The others pestered the coach, my son did what he was supposed to and the coach had forgotten him. I suggest seeing what happens at the next game and/or politely asking the coach what the minimum is (don't do this when he is getting ready for a game or is distracted though). Most will make it up at the next game if they realized they goofed.