At first I got the impression a photo was required when buying a new cellphone, but this appears to be just for new numbers.

China already requires an ID to get a number, so I don’t see how requiring a photo will help them track people even more? Maybe it gives them an updated photo? However, if you don’t get a new number every few years, then it’s useless.

My own country requires a photo ID to get a number and I’ve been to several other countries that do as well. I guess I’m just used to it now. Similar to how we put our photos on resumes, but my American friends were shocked by that.