Everyone loves to rip on the US as one of the only countries that “won’t use metric” but I wonder how many places officially adopt metric but traditional measures are still in common use. In Taiwan it’s very common to buy things in 斤 jin, aka catty. It’s 600 g in Taiwan and slightly less or more in other Sinophone countries. Housing is also measured in 坪 píng, which is the square area of a standard tatami matt. I think Japan uses this too because in TW it’s a legacy of Japanese colonialism.
For mainland China, a 斤 is 500g. Very common unit of weight.
Housing would be measured in 平米, square meters. It's pretty much impossible to understand that one as anything other than an adoption of the foreign norm. (Similarly for 斤, set at half a kilogram to fall within the range of traditional use while still fitting seamlessly into the metric system. But wholesale adoption there would mean measuring weights in 公斤, kilograms, which isn't done much.)
