To share or manage children's profiles on the My Disney Experience app, the primary account holder (usually the parent who created the profiles) must use the "Family & Friends List" feature. If you want another adult—such as a spouse or grandparent—to be able to make plans, book Lightning Lanes, or see the kids' photo passes, you must first connect with that adult on your own Family & Friends list. Once connected, you can go to the "Manage" section of the child's profile and select "Share My Family & Friends List" or specifically grant the other adult permission to "view and make plans" for the child. It is crucial to remember that children under 13 cannot have their own MyDisney accounts; their profiles must be managed by an adult. If you accidentally create "duplicate" profiles for a child, it can cause major issues with ticket linking and reservations, so it is always best to "invite" another user to share your existing child profile rather than having them create a new one on their own device.