I cannot even find any guidance from Apple on recommended patterns for which Apple IDs should be shared, which should be individual, and so on. This isn't even

I cannot even find any guidance from Apple on recommended patterns for which Apple IDs should be shared, which should be individual, and so on. This isn't even a configuration option, it's a hack that happens to work. (And there's no guarantee that Apple won't change their model tomorrow, since they've never given any guidance on what those multiple AppleIDs are supposed to mean.)