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I agree completely.
5-ish years ago I was a single guy willing to piss in a bottle at 2AM and live with that wonderful bouquet of sweat/gasoline/motor-oil funk. I built a "micro" hauler that had a simple plywood bunk, a lightweight countertop, a 12V micro-fridge/cooler and some lights. I could tow the thing with a compact FWD car! Then GF, now missus camped in it with me trackside a couple times and I quickly discovered it was not really "wife approved", but more "GF tolerated". And I didn't even have to ask if it would fly for a family. For that you gotta go with something more substantial. And the weight adds up in ways I didn't even consider.
In my opinion the best way to make a "camper" smaller tow vehicle friendly is to drop the wet spaces. No poo hopper, no shower, no sink, no water heater.
It should surprise no one that the first compromise these "micro" haulers make is no or very limited wet spaces.
It turns out water is heavy. Who knew?!