Let me ask you this, which kids feet are toughest ? The ones that only walk on carpet and wear shoes all the time ? Or the ones that constantly run around barefoot. When I was a kid I could run on gravel roads barefoot. Shoes were for school. You didnt waste them. Now I imagine I could feel a grain of rice. Id keep that horse barefoot and work him. He isnt being ridden yet. Wouldnt hurt to add some gravel around the water troughs, Exposure to hard a varied surfaces along with proper diet.