Is it safe for He Fei to audit the birth certificate?

Not safe. There is a lot of information about us on the birth certificate. Uploading a birth certificate has a certain risk of information leakage, and this is a marketing tool for businesses. Merchants hold activities to provide birth certificates and get free milk powder. If the baby uses it well, he will buy He Fei milk powder for a long time. Businessmen do this only to catch big fish in a long line.