Yeah, and the use of imaginary numbers helps immensly in the calculation of certain electrical circuits.
Doesn't mean I need to use it for buying bananas. Thinking people use the best tool for the job. A system of units is a tool.
The US is lagging far behind the rest of the world in math, partially due to our antiquated system.
Nonsense. Kids need to learn the fundamentals of math and science. Finding a volume or area in (square) yards or meters doesn't make a difference.
SD
I knew of a professor who insisted that students work problems in units that they made up. The one I remember a student used was furlongs per fortnight. There were others just as good.