Not sure if this guy is trying to create a little controversy or what but he says your foot is perfect the way it is and you don't need to wear shoes. Love the idea of a perfectly built foot, but not wearing shoes just isn't practical. Can you imagine walking in snow or in a hot parking lot without them? He also absolutely ruined my image of high heels, which I love ... For more, read the article.
http://www.npr.org/templates/story/story.php?storyId=89830802
So the question becomes, do you prefer to run around barefoot or do you like your shoes?