It is going to sound odd, but.. why do we need a phone number at all ( I know why it is so entrenched -- I am asking about need )? Because, if phone number is not needed, we can move to bypass the annoying effective duopoly.
Phone numbers so far have been one of the most effective unique identifiers that companies can convince people to give them
Phone numbers so far have been one of the most effective unique identifiers that companies can convince people to give them