I replied to you above for temperature but for human scale measurement, if you were to design a system for human scale measurement from scratch, you’d likely ma

I replied to you above for temperature but for human scale measurement, if you were to design a system for human scale measurement from scratch, you’d likely make 10 units equal to the average height (you could also argue for making 1 unit equal to that). Feet are closer to that ideal than meters. That’s all that I meant. Also 12 inches is divisible by 3 and 6. And if you get into fractions of an inch, you always stick with powers of 2 which makes some math easier. Some math so much easier in metric. The more important factor is obviously familiarity. Both systems clearly work. But neither is inherently superior in all applications.