Why the "
"?
Knots and nautical miles makes sense for speed and distance because 1 nm = 1 minute of arc (1/60th of a degs). Hence, those are reasonable units for navigation.
Feet for altitude makes sense, because meters is not a fine enough scale, and doesn't make out levels in round numbers.
Metric for everything else makes perfect sense too...
I doubt it'll ever change, at least not during my lifetime
Hopefully not..