Turn your thinking around. The only reason we still call it a phone is because that's what the original function was. They are pocket computers in everything but name. A significant percentage of the population doesn't even use them for voice calls anymore.
And yet we're fine having the draconic business model of phone carriers from the 90s and early aughts carried into the modern day, just wielded by Apple instead of AT&T.
Computers run software the user asks for, phones run the software the phone manufacturer allows it to.
