I do know two people who have lived in a caravan. Both women - divorced. One 52, one 63. The 63 y.o. was in a shitload of debt and sold her 3 bed cottage to pay it off, and bought a caravan. Had the caravan on a site in West Wales. She has to leave 4 weeks of the year for 'site maintenance,' and also when the caravan is more than 10 years old she has to buy a new(er) one. Rules of the site she's pitched on.. Rules of many sites actually.
Her current caravan was already 5 years old when she moved in in mid 2019, and cost some £34K. So in about 18 months she will have to sell and will probably only get £12-15K, and have to pay minimum £40K again (for something similar to what she has now, but newer.)
She pays rent to the site owner of £250 a month, she has a portaloo that need emptying daily in the block 2 minutes walk away, and she has no mains gas - has calor gas canisters that cost much more than mains gas cost her in her house, and it's freezing in winter. When it rains, the pitter-patter bashing on the roof is infuriating and deafening.
No matter how much she tries to heat the caravan, she is freezing in there from mid Nov to Mid Feb, THEN she has to find somewhere else to live for a month for the maintenance. She also has families with up to 5 kids staying in the caravans around her causing noise and mess from mid May to late September.
I do have to say having a washing machine and a tumble drier in a caravan is very unusual. (And it's odd to have it in the awning IMO.) As is knowing someone who has land that you can pitch it on indefinitely, so you don't have to pay £250 a month or so for site fees, and you don't have to leave for a month, while they do 'site maintenance.' I have to say, it's very VERY unusual for someone to let someone stay indefinitely on their land free of charge. (The 63 year old btw is selling her caravan in the Springtime and going into private let. She's had enough.)
The 52 year old woman I knew some ten years ago. She moved into a caravan after her marriage broke down too. She and her husband were left with nothing after the house sale. Didn't see her after she moved in to the caravan, but 2 years later, she was with another man, and they were renting a council flat. So she clearly didn't get on with caravan life! Great for a holiday yes, but living in one permanently. No thanks.
You may be happy in your caravan @chitofftheshovel and good luck to you, but unlike a few other posters here, I don't envy you one bit. I think living in a caravan in great for a holiday, but living there permanently would be a different matter. I can't imagine it being much fun long term. Having a small bungalow is much more preferable.