Fear of glass, sharp rocks, snakes, poision ivy, etc. are concerns even with shoes on. Most woodland trails have little glass except in the parking lots. Sharp rocks, you just watch where you place your feet. Snakes you always watch for and they will usually move away or I will back off. I don't hike in snake boots. Poision Ivy is always there whether your barefoot or not, buy some Ivy Block - it works. These fear are dening you a way to feel the trail. Your feet do toughten and it's a great way of hiking. Plus, it does keep a person more on trail, rather than bushwacking their way thought a woods. Read some of the info in the link posted. You may want to try this after all...
