Mrs B, funny you should mention that you prefer Imperial measurements.
Everything here is made to metric measurements, if you work on a car you need metric tools.
Our gallon is smaller than the UK gallon, sometime in the 1800's the UK changed the bushel to gallons, it was the same as the US back then, we stayed the same, why alter something that works?? UK adopted a liquid measurement.
All scientists work in the metric scales.
I still prefer Fahrenheit to Celsius, Miles, pounds, gallons etc.. Although the money system has been metric for over 240 years, all soft drinks are