I live in the U.S. We know a couple who have been "full-time RV-ers" for about twelve years. They sold their house and bought, not a van, but a "class A motor home," which is the same size and built on the same chassis as a bus. It has sections that slide out so that when the RV is parked there is a little living room and a reasonable-sized bedroom. It was [b]not cheap[/b] and it costs a lot to run. People with this kind of vehicle like to keep it looking nice so even costs them a lot to keep it washed!
They have enjoyed themselves, but they are getting ready to sell the motorhome and move back to a regular house.
It's not all that carefree, because the bigger your RV gets, the harder it is to find a good place to park it. You can't just park it anywhere you like. For one thing, if you're going to stay anywhere long, you want a "full hookup" (water, electricity, sewer) so it really involves renting space in an RV park, and some are nicer than others...
P.S. Yes, they need to maintain a "legal residence" in one state... and they have a service that receives all their mail, scans the envelopes, sends them images over the Internet, and they can tell the service to open and scan the contents, or forward the mail to them, or shred it.
