Waiting Skeleton

Next time teach says that, ask why it wasn't done back in the 70s when we were promised. Every generation it's ignored just makes the changeover harder and harder.

my mom's teacher actually said that they would do that, but now decades later its still the same

this will sound stupid, but the big thing that will get the population to switch will be something as unusual as Anime. Notice that, because Japan uses metric system, every measurement is done in metric on the shows, be it temperature, distance, or carton of milk.