i think that sports and exercise in general is extremely important for children, it will create in them a discipline as well as a better health and quality of life, martial arts teach humility, and at the same time the ability of self-defense. children should always do sports. and move them a little away from the technologies because everything has its time. however it is true that they have lost more organic qualities to go after the small screen. I practice sports and my son also does it with me... and he does very well....