Perhaps with the exception of fahrenheit most people here will know what you mean if you use units like feet and will often even prefer thinking in feet over metres for certain things. Personally I default to feet for something like height or a floorplan, although I can think in metres quite easily too.
But sailboat length is traditionally measured in feet. Same for aircraft altitude.
So sailors and aviators are more likely to use feet (and nautical miles) as measurement.
It's now defined in reference to SI meter, but it originates as 1/60th of a degree of latitude.
So ... not even a fixed length but one that varies by latitude
(given the Earth is an oblate spheroid | rotated ellipsoid | flattened sphere)
that's something on the order of 20 metres of sloppiness by my reckoning.
But I couldn't even tell you how many cm to an inch. I just know how big a 40" TV or a 28" bike is.
The main exception? MacBooks. Those will be labeled e.g. "14 inch" (14インチ).
At all other times, your incentive is to make the biggest lie you can get away with.
