First, keep fit. Taekwondo is a sports competition, which can exercise the body's cardiopulmonary function, action coordination and explosive power. Proper training is good for your health.
Second, improve the ability to bear hardships and stand hard work. No matter what martial arts you practice, you have to work hard. In order to reach the standard, an action may have to be practiced hundreds of times with strength and speed, and it can't be done without the spirit of struggle.
Third, increase self-confidence. Children have mastered the technique of Taekwondo through their own efforts and the guidance of coaches, which can greatly increase their self-confidence, which can penetrate into all aspects of their study and life.