>You don't count (almost) all the other countries on the planet being metric as a huge push?
I don't think a single country has gone full metric. A good example is minutes and hours are not metric, so any country using Km/hr or anything besides m/s or km/s isn't full metric. Most have other exceptions, be it PSI for pressures, F for temps... For most things non scientific, like building with wood (houses, etc) the Imperial system is well designed and the long history figured it out better. numbers divisible by 2, and fractions of inches just works. So nice that you can get 4'x8' sheet of plywood, and because of the conversion of 12" to a foot, I have nice even stud distances of 12, 16, and 24" will all line up with the dimensions of both ends of the plywood being on a stud. the metric equivilent lumber all ends up with odd numbers to mess with, and basically a non standard outside the US when it comes to building. Similar with bolts and nuts, the US system is much more standardized, be it the markings on the head, and the size of the head to bolt diameter, is all much more standardized than the metric equivalent.