I don't know if it's easy for a 23 year old to say this but tell them what you think, explain why, and if those parents don't like it, too bad. At least you know you did the right thing. I was a little league umpire for almost ten years before I became a currency trader. Let me tell I would get into fights with A LOT of parents almost every game. One time I had to kick 5 people out of the game on opening day. I don't even look back on it because I know I did the right thing.