There are 4 of us going……my husband, adult son, adult niece and myself. We paid for the cruise so I have everything on my app. We are already checked in. My son and niece wouldn’t even have any idea how to find out any information regarding the cruise. They will just show up 😂……with this in mind, can I put all of our information in ArriveCan or do my son and niece have to have their own on their phone?