Tired of watching the fancy stuff

I see a lot of high school basketball over the course of a year, and I am weary, weary of seeing players trying to be fancy. Almost always bad things happen when they do that. What I don't understand is why the coaches let them do that. As soon as they turn the ball over because of hot-dogging or miss a shot because they were trying to get on ESPN or commit a stupid foul, yank them out of the game and let them know why you are doing it. Taking a few losses early might pay big dividends later in the season.