In my experience with Americans. If you have a mobility scooter you are so fat you can't walk. Getting a machine to do walking for you is stupid. If you need a machine to walk and you are not geriatrich, then stop eating for goodness sake. I had to help carry a 500 pound American who died on his vaction with his family. How fun is that? "Dad was a fat pig and he died at Dineyland". Jeez!