I wish they left space to discuss the Japan’s Furusato Nōzei and China's Hukou system and how they impact non-residents.
For example, if your hukou is registered to a rural community, you do not have access to the same level of public healthcare that people with Shanghai hukous have.
edit: replaced 'Jūminhyō' with Japan’s Furusato Nōzei
I don't think the Jūminhyō system is similar to the Chinese one. You basically just need to have a utility bill or something with your name and address on it, and register it with your local ward office or city hall. There is no concept of being refused it unless you aren't a legal Japanese resident as far as I can tell?
It's a fully voluntary program and the annual 'benefit' is usually something like a box of local produce or a reduced fee ryoukan stay, it's hardly something that affects urban quality of life.
Regarding the Japanese system, there are no restrictions on moving residence. Resident registration (Jūminhyō) can be done anywhere. Therefore, if you move to a new place of residence, it is common and recommended to register accordingly. I don't know the details, but I think the system in China is probably completely different.
For example, if your hukou is registered to a rural community, you do not have access to the same level of public healthcare that people with Shanghai hukous have.
edit: replaced 'Jūminhyō' with Japan’s Furusato Nōzei