There would be a lot of junk littering the roads if people couldn't easily transport large items for sale or to trash. Similar to what my neighborhood looks like, with neighbors hauling their unwanted items to the street corner to be taken by other neighbors or hauled away by the city dept. of public works. Except there would be a lot more couches, old projection TV's, etc. which people already don't want to deal with and illegally leave it on the street.