>>84054073Usually thorns, nails, etc are sharp enough to break skin but not enough to break rubber AND skin just by stepping on them. Also glass shards in special are very sharp and cut through skin easily but not so well on a shoe.
I do have a thick sole skin and I do like to walk barefoot but I don't pretend that it is the same as using shoes. Walking barefoot main defense is quick reflexes so you remove the weight from the foot immediately when step on something sharp but this don't save you from when you land from a jump or step on an particularly sharp object.