You can set up Screen Time for a family member on their device by following the steps in Choose apps and contacts to allow at all times.
Note: If your family member needs health or accessibility apps, make sure they’re in the Allowed Apps list. If Messages isn’t always allowed, your family member may not be able to send or receive messages (including to emergency numbers and contacts) during downtime or after the app limit has expired.
To help reduce your family member’s risk of myopia or eyestrain, About Communication Safety on your child’s Apple device.
Note: For children under 13 in a Family Sharing group, Communication Safety is turned on by default.
On your device, go to Settings > Screen Time.
Tap Content & Privacy Restrictions, then turn on Content & Privacy Restrictions.
Choose specific content and privacy options.
To protect your family member’s hearing, scroll down, tap Reduce Loud Audio, then select Don’t Allow. (This prevents changes to the maximum headphone volume.) See Set up Family Sharing on iPad