Not to put a downer on what is a great thread, but I've seen something like this before and it was basically an older male pensioner that had been evicted from his home and this is how he lived in the short term. I pulled into a camp site and was chatting with the guy. He'd had had a reasonably comfortable life, wife passed on and he was just touring with his wordly possessions until He found a new place to settle down.
It didn't look great nor safe, but He was happy in life. I left knowing He was going to find a new place, neither sure where.
Pro's,
no council rates, insurance etc