Just wait until my childrens generation reach mid life or before and start having to receive treatment because of weakened backs. All through middle school my kids had to carry over 30 lbs of books in backpacks to and from public school. This was because lockers were not provided ( drugs and weapons could be hidden) and the school didn't have enough money to buy a second set for in school. They think they have problems now? HuH just wait and see. turcica.