You're a bit like those deep jungle natives, or Andean mountain runners, Roger, the ones who are super-fit, walk or run for hundreds of miles a week and who are amazed that so-called civilized people do it voluntarily, and for no discernible purpose.
I am reminded of a story I heard first hand from a guy who organized a Native Lifestyle exhibit in a big museum. He flew a number of genuine Amazonian tribesmen, plus their building materials, over to build an authentic native tree house within the museum. It was a hugely successful exhibit, but he was fascinated by their reactions to Western peoples' habits. For instance they were disgusted at the idea of toilet paper, and hooted uproariously at the sight of dogs on leashes. That's like you, that is, Roger.