There are definitely cases where I want “whatever is local” and others where “whatever my normal default is”.
If I’m getting driving directions in a place where the car and road signs are in kilometers, I probably want my directions in kilometers as well, even if my default is stupid-units.
If I’m getting driving directions in a place where the car and road signs are in kilometers, I probably want my directions in kilometers as well, even if my default is stupid-units.