With > Family, then tap Add Member in the upper-right corner.
Tap Invite Others, then follow the onscreen instructions.
You can send the invitation using AirDrop, Messages, or Mail. If you’re near the family member, you can also tap Invite in Person and ask the family member to enter their content restrictions, Set up Screen Time for a family member
Block access to Apple Intelligence features in Screen Time.
Note: You can use Apple Intelligence features on an Mac User Guide: Join a Family Sharing group in Family Sharing on MacApple Support article: Make sure that each family member has a unique Apple Account