OMG.... try being from Canada where we blend ALL OF THIS.... and in no rational manner....we are the absolute bastartization of Metric/Imperial/British/American ...temperature... celsius...unless you're cooking, then Fahrenheit ... weight... meat, people are in pounds, fish, everything else, grams/kilograms... distance...inches on lumber, feet on height... if you're driving, it's km or HOURS (seriously, it's a big place, it matters),
I think I finally came to grips with all of it when I was doing a LBS ride in Australia as a guest and we were doing hill repeats down into a traffic circle for the turn around and one of the riders asked me if we actually did these in the opposite direction and commented on how terrifying doing a "roundabout" in reverse would feel to them...