You have to create a Google account for the child too. Additionally: https://families.google.com/familylink/privacy/notice/ https://families.google.com/family

You have to create a Google account for the child too. Additionally: https://families.google.com/familylink/privacy/notice/ https://families.google.com/familylink/privacy/notice/ "As explained in the Privacy Notice for Google Accounts Managed with Family Link below, Google will not serve personalized ads to your child, but your child will still see ads while using Google’s services."