This unit is incredibly useful for not only maths, but also science students who will need a clear
understanding of the metric system and working across multiple units of measurement.
This situation is similar to how America still uses the imperial system
instead of the metric system that the majority of the world measures with - many just think it's too much of a hassle to switch over!
I wonder if in 20 years comedians will joke about the coming of the hydrogen economy the way they now joke (in the US) about the
coming of the metric system.