Question 1198338
Feet and miles (and other units) are "outdated" and inconvenient.
Fluid ounces, cups, teaspoons are silly.
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But, getting rid of feet and nautical miles will be difficult as they're used by all airports, ATC, and pilots world-wide.  Ships also use nautical miles and knots.
Altimeter settings are given in inches of mercury, not millibars.
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PS  All ATC stations, approach controls, towers and ground controllers must be fluent in English.