If you want to take a professional route, you will start training at the age of 5 or 6, and you will get results at the age of 12. It must be a sports school. You should train every day and make rapid progress. You'd better have a teacher to guide you, and then take part in various competitions. If it's just a hobby, the difference is not very big. It depends on the level of the coach. My child is studying. In a gym in the Three Gorges Square in Shapingba, the teacher is more serious and responsible. Children can't help it if they like it.