I should have added Esperanto to the list.
For things that require precision (science & engineering), the metric system makes infinitely more sense. For less precise, everyday use, an inch, a foot, a yard, etc... are much easier. That’s why there’s still resistance to the Metric system for things that don’t require much in the way of calculation or precision.
I notice that in UK they still talk about how much a person weighs in stones, not kilos. I have to look up every time how much a stone is. (14 pounds.)