> There is no justification for it other than the general US contrarian attitude of "you're not the boss of me".
I'm a proponent of the metric system, but that's either a wild straw man or very lazy thinking. An obvious justification (which has lots of merit) is "I've been using imperial all my life and it's what I know, what I think in, etc." Changing systems would be very disruptive for a lot of people. IMHO that doesn't mean we shouldn't do it, but it is something that should at least be acknowledged before a massive forced upheaval of a system.
Just thinking about driving for a minute, even little things like the speedometers in cars being primarily mph, millions of miles of mileposts all around the country that would need removing and changing. Every road sign with miles on it, etc. Those things are a little more than just "you're not the boss of me"
There are more factors of 12 than of 10. This makes some imperial units more practical for certain types of things that involve mental math or quick calculations. Fahrenheit is higher resolution than Celsius for weather/climate measurements.
