/System/Library/CoreServices/Family.app/Contents/MacOS/Family Family Sharing lets user and up to five other family members share access to Apple services like Apple Music, Apple TV+, Apple News+, Apple Arcade, and Apple Card.
/System/Library/PrivateFrameworks/FamilyNotification.framework/Versions/A/Resources/Family.app/Contents/MacOS/Family The binary is a part of Family application.