America's Next Top Model

So I'm watching America's Next Top Model (guilty pleasure - don't judge me, just accept it!) and I have to wonder - how can there be so many different ways to walk? Seriously, what ever happened to a simple "one foot in front of another" approach to walking? It's served me quite well over the years. I rarely fall or walk into things. I just don't get it. I guess I'm not meant to get it.