PowerCrazyDo Europeans really give their height in cm? You’d think they short hand it like to like 1.7m or whatever since height is one of those things that doesn’t really need to be exact and will change by a cm or so based on the kind of shoes you are wearing, or wearing shoes at all.
Do North Americans really give their weight in lb? You'd think they'd short hand it like to like 15 stone or whatever since weight is one of those things that doesn't really need to be exact and will change by a lb or so based on the time of day and what you've eaten.
No, we give our weight in pounds instead of ounces because weight is one of those things that doesn’t really need to be exact and will change by a couple dozen ounces or so based on the time of day and what you’ve eaten.
No, see, here ounces compare to millimetres. If height and weight fluctuate over centimetres and pounds, and they do, lesser units should be disregarded, right?
Stone isn’t a measurement in America, it’s inorganic material. The next-heighest commonly known weight is a ton, or 2000 lbs. Not very helpful.