We already ban things..ddt, fags, certain pestisides, guns, in a few places. If we do not ban reckless overconsuption there will be no society left, free or otherwise.There is no way we can continue to allow money to buy what we do not need then call it freedom of choice.We are far to consumption oriented, shopping is now the only employer in many towns and villages...can this be good ? As for flying, well, don't ban it, but let us control it so that we all may enjoy a future.