What should parents do if they take their children to settle in Chengdu?

It is conditional for parents to move with their children. The area of buying a house determines the number of people to move. Consult the household registration in your area specifically.

Anyone can buy medical insurance and social security in Chengdu, either by himself or through a company. Buying social security and medical insurance in Chengdu is not subject to geographical and regional restrictions, nor is it subject to household registration restrictions.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.