On the device you want to restrict the permissions for:
Open the iOS settings
Click Screen Time
Click Content and Privacy Restrictions
Enter iOS restrictions PIN if it’s been set
Toggle the Content and Privacy Restrictions switch
Select Location Services
Click Don’t allow changes
Click the back arrow next to Content and Privacy Restrictions
If you have not already done so you may need to set a parent passcode.
Will this impact my child’s ability to change the location permissions for all apps?
Yes, your child will be unable to adjust the location permissions of any app they already have installed or install.
Why doesn’t my child’s device look like that?
You may need to update the operating system on your device. Please contact Apple for assistance on upgrading the devices operating system.
What PIN is required?
This is the PIN that you set when you’ve gone into device restrictions before. Your child should not know this PIN.