Change Preference Restrictions settings in Screen Time on Mac
Use Preference Restrictions settings to lock Screen Time settings.
To change these settings on your Mac, choose Apple menu 
in the sidebar. (You may need to scroll down.) Click the Family Member pop-up menu on the right and choose a family member (if you’re using Family Sharing), click Content & Privacy, then click Preference Restrictions.
Open Screen Time settings for me
Option | Description | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Allow Changes | Allow changes to these settings on iOS or iPadOS devices:
Turn the options off to restrict these changes. If an option is turned off, the Screen Time passcode is required to make a change. | ||||||||||
Open Privacy Settings | Open Privacy & Security settings. See Change Privacy & Security settings. | ||||||||||