To the REAL engineer, dealing with Kpa, psig, psid, psia, BTU/lb, or gram-inches is all in a day's work.
When first writing dual-dimensioned torque values, we determined the correct SI units were Newton-Meters. The French said "Eh??? We use Kg-Meters!"
I suspect the educators prefer only one set of units to avoid showing their own shortcomings.
Personally, I enjoy the challenge of units conversion, if only to keep me from turning into a new-and-improved Murphy.
