The UK sorta tried switching to metric but didn’t do it completely and now has a weird system where the system you use depends on the situation I hate it
what’s right with it? doesn’t make sense it exists at all. it’s not 10- based obviously, but it’s not even 12- based like other imperial units. it’s 14 pounds! 14? who came up with this shit?
I end up doing a lot of lazy maths, and remembering rough numbers.
45MPG? That’s about 10 miles per litre.
8 inches? Eh, 20cm.
Anything remotely technical, I convert everything to metric (and actually take the time do accurately).
Having the inch-fractions to mm table on the back of a ruler is very useful when using old drill bits and spanners.
The US does it too, the other way around. They use fractions for a lot of things (3/8", half a foot, etc.) and then switch in decimals (like “2.5 inches”) when they think you’re not looking. Except for bullets for some reason which are in mm.