Originally Posted by Dan B
However SI is used extensively in many high school and college courses (at least in the sciences and mathematics), though we often continue to use ES in those courses, as well. For example, although I mostly used SI, I once had to answer a question in Differential Equations about "mass" using ES. I didn't even know what the units were for measuring mass in ES! I had to look it up (it's "slugs," by the way).
I agree that it would be much simpler to do away with ES and exclusively use SI. But that seems to be taking us a very long time... :okashii: