my kids tell me i cant rock the sandals. i dont really like flipflops, but i grew up driving barefoot. my first official car was a datsun 210HB 5sp that i never wore shoes while driving. pretty much every cop that i ran into told me to put shoes on, it was illegal to drive without them. i thought that was BS, and still drove barefoot until i was like 22. now i have to wear hard soled boots for work, so thats what i drive in. its not too bad, easily gotten used to. i still drive barefoot once in a while, but for the most part its with either skate shoes or slip on vans when im not at work.
i had some serious callouses tho, i used to be barefoot all summer in AZ. try wandering an art fair in downtown tempe in june, it will melt lots of cheap shoes.