They considered changing over to meteric 30 years ago when I was in elementary school. They told us then that it would be a very long slow process but eventually we would be converted over. I remember when cars speedometers in the 70's had kilometers written under the standard MPH. Then it seemed like the milk, tonics and booze started to change over, no more qurtz or 5ths, everything in liters. I surmize they took the every day average item and converted those things first to begin acclimation of the process. Now it's just a matter of time.
