Once upon a time I was a barefoot hippie. If you extrapolate flip-flops down to their Platonic ideal, you can arrive at something you can fold up into your back pocket.
I’m reminded of this one barefoot hippie who would do nature survival shows without shoes. I understand how it worked for him in the forest or desert with brambles and whatnot, but how does that work in an urban area?
Asphalt is hot but as long as you keep moving, and you’ve built up some callouses, it’s not that bad. I always kept to the grass on the side when I could.
Depends on where you live. In my city, sometimes shoes aren’t even enough.