It is good to know that you enjoy walking barefoot sometimes because too much of shoes on hurts the foot. I do it sometimes too but not on tiles.
Parasites can enter our foot when we walk barefoot to scrappy areas. Our feet could be infected without our notice and it could take weeks or days to notice. It's good to take care of our feet as it is also an important part of the body, although people neglect it.
Good luck with your entry...