The issue with the imperial unities is that every single place has their own derivation of them. You are lucky if they are consistent within an entire city.
The US had a lot of trouble getting them consistent through the entire country. Most of the world stopped using them instead.
You use US customary, though, not Imperial.
I was in Canada and ordered a 20oz beer. The waitress said “ok the pint” and I said “uhh…the 20 oz one” and she said “yeah…ok.”
Didn’t realize that we had smaller pints (16 oz) than they do everywhere else.
The issue with the imperial unities is that every single place has their own derivation of them. You are lucky if they are consistent within an entire city.
The US had a lot of trouble getting them consistent through the entire country. Most of the world stopped using them instead.