How to recover a child iCloud account password?

Hi RaulGS,

This document seems to have what you need:

Family Sharing and Apple ID for your child - https://support.apple.com/HT201084

- "Your email address is the rescue email address for your child’s account, and you can use it with the security questions you provided to reset a forgotten password. You can keep your your child's account more secure with two-factor authentication."