Born before 85 years, especially in rural areas, more, why?
1. Rural economic conditions are insufficient. Children don't use diapers, but generally use cloth, which is very thick and has a pad under it. After a long time, it will affect children's feet, especially men. It makes sense to think about it.
2. The external figure of eight is more conducive to the balance of the human body when standing than the internal figure of eight.