I never used it myself, but there is actually a "Family Sharing" feature for iCloud. > When Family Sharing is turned on, a shared album is set up automatically

I never used it myself, but there is actually a "Family Sharing" feature for iCloud. > When Family Sharing is turned on, a shared album is set up automatically in the Photos app on all family members’ devices. https://www.apple.com/icloud/family-sharing/ https://www.apple.com/icloud/family-sharing/