My son and I have been playing tennis for 6 years. When he was an elementary school student, he practiced playing tennis hard and often entered matches. He took tennis lessons three times a week, but he's only taken them twice a month since he started junior high school, because he can't be on time for his tennis lessons after school. Yesterday he said "I want to quit tennis school." I was surprised because he likes tennis very much. He feels the gap has widened between he and his friends. This takes away his motivation. I want him to keep playing tennis because I think he needs to get exercise, and we learn a great deal from sports. I'll ask his coach's advice, but in the end it'll be up to him to decide.