Talk:Horseshoes/@comment-71.3.215.210-20110825143328

It's possible that horseshoes were at one time worn, and have simply been overtaken by more human-styled shoes as fashion and form overtook function; they may simply be a carry over from previous times.

It's also possible that horseshoes as we know them are merely part of a more complete piece of footwear, and instead of being nailed into the hoof, would be strapped on or cobbled into a more complete shoe/boot/what have you. When older shoes wear out, the horseshoe itself would remain, and then could either be recycled into another set of work-wear, or used for a little friendly competition as in the episode marked above. Considering the prevalence of horseshoes in clothing, signs, and even Cutie Marks, there are all sorts of possible reasons.