Only can share one iPhone's location at a time from a shared Apple ID account with two different iPhones and phone #s?
A family has two iPhones (13 and 11 Pro Max with iOS v16.3.1) with one single shared Apple ID account and two different phone numbers. Using "Find My" to share contact shows "Use This Device When Sharing Your Location? You are currently using '[deleted iPhone's name]' to share your location in Find My, Messages, for personal requests on HomePod, and in automations in Home app. [Not Now] [Use]".
Why can't both be used since each iPhone has its own name, contact, and phone number?
Thank you for reading and hopefully answering soon. :)
iPhone