Apple Card Family is the latest form of financial service created by the Cupertino-based OEM. It allows 2 users to share the same credit-card as issued by the company, or for parents to share such a card with children above a certain age. Therefore, they can build credit or Daily Cash rewards up together on the same account over time.
https://www.notebookcheck.net/The-Apple-Card-gets-new-Family-services-for-credit-and-payments-sharing.533428.0.html