Humans are bi-pedal animals who walk extensively over long distances. However our feet are soft and not well suited to the task. However dogs, monkeys, and other animals have paws that serve as shoes to protect the feet.
No other mammal has such unprotected - but we are known for walking the farthest distances / nomadic behavior. Is this a joke?
I want paw feet instead of shoes.
Walk around barefoot and you'll get calluses similar to what you want. The more shoes you wear, the fewer calluses you'll get.
Alternatively, line your shoes with sandpaper and toss some gravel in there
Great way of deterring foor fungus, is to not have the skin to begin with.