As a normal parent, I don't think I will let my children become such robots! No matter what you call scientific law training, it will be an irreversible physical damage (including psychological damage) for children of this age, because first of all, at this time, the children's organs are not mature enough to withstand such intense physical activity! Secondly, psychologically speaking, before children can resist adults, physical training is a kind of mental torture, which will directly lead to psychopathy and severe depression when they grow up! So remember that paralyzed parents should not do whatever it takes to achieve selfish goals!