3G is a legacy protocol. The handsets themselves are irrelevant. They're shutting down a legacy protocol and (for somewhat misguided reasons) blocking handsets because they can't access 000 anymore.
Despite it having advantages over 4/5G, I do think it's progress (at least in terms of security).
A load of older IoT devices and POS terminals are likely not working anymore though. That's a harder problem to solve.
A load of older IoT devices and POS terminals are likely not working anymore though. That's a harder problem to solve.