It was only one example they gave, and they accept multiple different types of ID; a driver's license or national ID card being other likely ones, and DLs do say where you live.
Not updating your DL after changing your address is a crime* in all US states. I'm not as familiar with law elsewhere, but would be surprised if that's not true most other places.
*There are exceptions for active duty military personal and other limited exceptions.
It is a law but rarely enforced, also some places like Washington are primarily digital meaning you update your DL address online but they don’t print a new ID unless you request it or your DL is expired
Unless you’re wild camping, campsites have addresses. So do marinas where a ship would need to be docked more or less regularly to establish residency.
As for being a nomad, you don’t need a driver’s license or any kind of ID to wander if you’re willing to sleep rough. If you want to drive on public roadways though, you better have a primary address where the courts can send someone if you kill someone in a traffic accident and bail.
Docking is expensive, so no. It's also only needed once per 5 years or so for maintenance.
Government fining you a ticket doesn't mean your address has to be on the drivers license. They could register the number plate to an SSN for instance.
My Spanish identity card has my full address. Not sure if the DNI does as well, or only the foreign resident version.
> And what do you mean by “us”?
US folks are pretty used to being able to up and drive across the country with a suitcase, without filing any paperwork (at least till the taxman comes knocking next April)
Have to get your vehicle registered in your new state as well (if you own one) as well as your driver’s license. God help you if your vehicle is towed and your license/vehicle is not registered in the current state. Absolute mess.