Came to say the same thing: Shame that one can't run WhatsApp or Signal on them, would be an option for grandma to keep at home. (Note: not Apple's fault - iMe

Came to say the same thing: Shame that one can't run WhatsApp or Signal on them, would be an option for grandma to keep at home. (Note: not Apple's fault - iMessage, Wire, and other messengers work, if I'm not mistaken.) Identification and authentication by phone number should die (or at least be an option among several).