Make sure you have an eligible iPhone or iPad, Apple Cash set up on your account, and Family Sharing enabled
Open the Wallet app on your iPhone
Tap your Apple Cash card
Tap the More button
Tap Set Up Apple Cash Family
Follow the on-screen instructions
Choose the family member you want to add
Confirm the parent or guardian information if prompted
Review and accept the terms and conditions
Complete identity verification if required
Set up permissions and spending controls for the family member
Finish the setup and confirm the Apple Cash Family invitation or activation