Shagga
You've got it backwards if you were living in the colonies the Imperial system is standard and the other one is just well Metric.

I wouldn't complain to hard wasn't you guys that thought of that "non standard system" in the first place.
People here in the US use the Metric system quite a bit I program CNC machines for a small defense contractor and on many of the product that is shipped overseas the prints use the Metric system although we usually convert the dimensions and tolerances over to inches before we manufacture it . The Imperial system would be just as good as the Metric system if they would scrap the fractional sizes and just go too decimal inches why we have not done that I have no idea.