Like I said in my earlier post, humans can’t walk barefoot on rough terrain. Humans don’t have hoofs. I wonder why. It would have been an awesome inbuilt accessory. We wouldn’t have to kill so many animals to make leather shoes.
So anyways, we don’t have hoofs, so we can’t walk on rough surfaces, thats exactly why we need floors beneath our feet as much as we need roof above our heads. This does let us do things better though. Become creative by getting discount laminate flooring for us to walk on.