DS joined a football club since May. He likes football though I have to say his performance is just ok, not great. Everytime he went for a training or match, he would like me to watch him. I rarely got time to watch it. However in these few times I did watch him, he was rarely in the field, was often in the subs. This morning the match started at 12:00, by the time I had to leave, which was 12:30, he was still sitting aside and waiting for his turn to go in the match. Later on when I picked him up, I asked him how long he had been playing, he said probably 10 mins. He might not be accurate about the time he was in the match, however it is clear that some kids were in the match from start to the end and my son was only in it for a very short time. Should I talk about it with the football coach? I don't think this is fair. It's supposed to be roughly equal time for every kid to be in the match, is that right?