Now, in Europe (excluding the UK) they also still use some weird units from the past. Calories for example, and horse (!!) power.
But you're right that is sort of a weird unit from the past insofar as it's related to the SI system but isn't formally part of it. (It's basically now defined by its ratio to joules.)
Pounds are one of the real bugbears of imperial in mechanical engineering with lb-f and slugs (i.e. "pounds" conflates mass and weight). Always hated that. I'd convert things to metric and then convert back when I had to work in Imperial.
And I still hear stones from time to time in the UK if you really want archaic.
They're given in N/m^2, but all the petrol station machines are in PSI, probably because the numbers just fall better.