They can't access to Apple Music with Family Sharing
I created a Family sharing and the person joined my family but doesn’t have access to the Apple music.
[Re-Titled by Moderator]
iPhone 7 Plus, iOS 12
Question marked as
Did you get an Apple Music Family subscription?
Get an Apple Music family subscription - Apple Support
If so, they might be able to fix their issue by turning Sync Library off for all of their devices, then turning it back on again. Learn how.