Living in Canada, I got used to metric a few decades back (Trudeau the elder) but some people never made the change and probably paid a price in job opportunities
LoL ! I was the other way around.
When I was at primary school the Wilson government committed itself to metrication and we learned everything metric. Then the society was too stubborn and they couldn't get enough shops and companies to stop using pounds, yards and ounces and they rescinded and made it optional. So my generation grew up with a whole load of decimal stuff that was useless in a grocer's shop. We barely knew what an ounce was.
The UK's just getting round to it now.
Tee hee -- my father was a rural valuer, a character of yards, miles, roods, chains, and perches; but when Australia decided to go metric, he bit the bullet. I recall -- I was ten -- him driving me nuts as he drilled me in the new values.
Now I'm comfortable with it -- the metric system is incalculably more efficient -- but I've noticed that little pockets of Old Think linger: a 9-pound baby is a nice big baby, and I still think of tire pressures in p.s.i.