Too fucking right. This is why I never understood caravans. Why go on a camping holiday if you just want to sit in a smaller version of your house? The whole point is getting away from conveniences. Some of the best holidays I've been on involved collecting everyone's phone batteries so they couldn't use them. Roughing it for a few days is the point of the bloody exercise...
I've always felt with caravans, that it's a statement that you don't want a camping holiday...hence the kit.
As you say camping should be about minimalism....my ex wife though would always insist that a site should at least have a bog. When I first started out camping in the 60's, it wasn't uncommon for a farmer to stick a notice up advertising camping when the facilities were essentially a tap, in the farmyard, with maybe an outside lav.
Passage of time and planning regs etc meant things changed. The best camping is always fly camping setting up somewhere, where you may or not be welcome. Get permission if you can...don't hang around too long if you can't.