Screen Time Passcode
How do I remove the screen time passcode recovery? My son keeps changing it using his apple id and reseting it.
iPhone 8, iOS 14
Question marked as
You should be setting the Screen Time passcode for your child's device using your Apple ID, which, of course, is different than your son's Apple ID.
Use parental controls on your child's iPhone, iPad, and iPod touch - Apple Support
If the above were true, he could not change the passcode.