While many believe that backpacks with wheels are the best way for young students to combat heavy loads of homework, that’s not always the case. Several schools and school districts across the country have banned the backpacks because they clog up hallways, don't fit in lockers and cause general trouble when students run down the halls dragging them after they've tipped over from going too fast. And that’s also the case in Shelby County. Three elementary schools have banned the wheeled backpacks for those exact reasons.