My wife informed me that I always comment on the hardness of the floor, regardless of where we are. (I will take off my footwear to stand on novel surfaces with my bare feet. Situationally, ofc.)
Marble, tile, hardwood, softwood(?), vinyl, stone, smooth concrete, textured concrete, short carpet, long carpet, grass, turf, sand, asphalt, gravel, hay, moss, plastic, foam, rubber. Plus the combination of different subfloors.
Anyways, there's dozens of us!