A local realtor told me it is not completely unheard of to see a house in parts of Albuquerque that have a rammed earth floor, or adobe brick construction covered by a facade of plaster. People did what they could 100-130 years ago.
And they have remained that long because they are usually passed down within a family. So no inspections were done because there were no mortgages.
People are building houses out of earth rammed tire walls in Taos, NM. They call them earthships. They’re totally off grid and stay at 70-75 degrees year round with no HVAC system. They all have a full length greenhouse across the front which faces South. That creates their heat. To cool them, there are geothermal tubes on the back of the house that they can open along with high windows in the front which creates cross ventilation.
Adobe, rammed earth etc works well down on the Southwest and in Mexico. Where I am in the Ozarks, not so much. I walked out to my garden one day after a lot of rain and there was a 1 inch hole with water bubbling up out of it and it flowed for days. We have a lot of moss. The North side of our buildings turn green after a few years and that will eventually turn into moss.
Years ago, I ate at a restaurant in New Mexico, that was apparently located in a building that had once been owned by Kit Carson (who died in 1868 ;>). So, yes, there are indeed a few old buildings in use, in that part of the world...