At what age should children's corrective shoes be worn best?

I have consulted in Xiaokeru before, and 3- 12 years old is the best correction period for children. Infants and young children are basically flat feet, so don't worry about it. The normal formation of the arch of the foot is about 3-6 years old, and slowly about 90% of the flat feet reach 10 years old, which can develop into a normal arch. Only a small number of flat feet eventually become pathological and need treatment and treatment.