I've found that's the question to ask with paperwork.
For instance, France is also extremely bad regarding paperwork and administrative red tape and people are so used to it that many can't imagine that many of it is not actually needed for society to function. I noticed when I moved to the UK: Suddenly all that was absolutely necessary to protect civilisation and the Republic (I only exaggerate a little bit) did not even exist and everything still ran smoothly.
Telling example: During the Covid lockdowns, the French administration decided that people had to fill and sign an official form to keep on them every time they left home. Basically "I swear that I am only doing my daily excercise. Date, signature" to be shown to any police officer who might ask, or "zut alors" you're nicked.
Control.
So the state knows in theory, who is living where.
With the joke being, that those institutions, where that information would actually be useful, don't know anyway. And so you still have to submit your adress everywhere (and then again, and a third time, to be sure).
But, yes, different societies have different approaches there and they are kind of designed around it.
Well, no.
You already have bills in your name, so there is nothing to do.
On the other hand, regarding ID cards (in France): First there is no obligation to keep the address on it up-to-date (so why is there even an address on it?). Second, if you do want the address to be up-to-date then you need to follow the administrative procedure to get a new ID card, which involves providing... a proof of address in the form of an utility bill!
- so you can vote in local elections and they can send you your ballots
- taxes, as they depend on where you live (some tax rates can differ and more importantly it decides where your taxes go)
- security, so for example when you have an arrest warrant or have committed a crime, etc. the state knows where to send your fines, etc.
- planning of health services or education services requires the state to know where people actually live
> And proof of address is not a utility bill there, but either a form from your landlord or land register.
Because you've decided to do that, not because there is a practical requirement, which is my point.
Edit: because the decision was to have a strong ID system, so when people show an ID with an address the confidence is high in that being correct.