Metric System and the US
It's inertia, not preference. (Back when the metric system was new, it was "no way are we using a French system".)
Seriously, if all your tooling is for Imperial (since the British dropped it, it's now "SAE" or "U.S. customary"), there's no small amount of expense involved in changing, including the need to do things like stockpile replacement parts made to SAE dimensions. Businesses that aren't thinking of the export market don't like making expensive changes.
You gotta be kidding! Now you´ll also say that the Imperial system is better than the metric...
It's inertia, not preference. (Back when the metric system was new, it was "no way are we using a French system".)
Seriously, if all your tooling is for Imperial (since the British dropped it, it's now "SAE" or "U.S. customary"), there's no small amount of expense involved in changing, including the need to do things like stockpile replacement parts made to SAE dimensions. Businesses that aren't thinking of the export market don't like making expensive changes.