Set Up Family Sharing on iPhone
(With Family Sharing, family members can share purchases, subscriptions, and iCloud storage plans, Screen Time information, and more, all without sharing accounts. To use Family Sharing, one adult family member (the organizer) chooses features for the family to share and invites up to five other family members to participate.)
1. Go to Settings > [your name] > Family Sharing, then follow the onscreen instructions to set up your family group.
2. Tap a feature you want to share, then follow the onscreen instructions.
(Depending on the features you choose, you may be asked to set up a subscription. If you choose to share App Store, music, movie, TV, and book purchases with your family members, you agree to pay for any purchases they initiate while part of the family group. Adult and teen family members can turn off purchase sharing for themselves.)