There are lots of reason a dog would wear shoes. Racing dogs wear them to prevent injuries to their paws. WATCH IDITAROD DOGS HERE  They can protect dog feet from an extremely hot sidewalk. But mostly, I think people buy them for the laugh!

We had t-tiny boots for our little black chihuahua mix once. We were going to Mt. Charleston in Nevada, near Las Vegas, and we were worried about the snow. Well, it turned out that she hated them, so we had to carry her outside to a spot away from the snow when it was time for business. It all worked out for us, and for whoever bought those booties at the Goodwill store!