When viewed through an evolutionary or naturalistic lens, to walk, run and move barefoot is, of course, the default human condition. Any alteration of this is an alteration of not just millions of years of bipedal hominid function, but hundreds of millions of years of natural selection’s honing and refining of foot structure.~ Matt Wallden from, https://www.bodyworkmovementtherapies.com/article/S1360-8592(16)30050-X/fulltext
This is a stupendous deep-dive into our feet. I love the clarity of, “[a]ny alteration of this”. Am I barefoot? (At this instant, yes. With my feet on very rough, old, worn concrete, on my patio, in 50°F weather.) If I am not barefoot, I want that to always have been a conscious choice—some specific reason for why I’ve chosen to alter the function of my feet.