Yeah, I remember when we officially switched over in the late 70’s. I remember putting transparent decals on my dad’s car speedometer converting miles/ hr to kph. In some ways we’ve regressed back to the imperial system. It made me reflect that units of measure are always relative in our minds instead of absolute. Same applies with fiat currency and why sats are so hard to learn on a day to day usage basis. People are more used to relative fiat prices and that won’t go away soon.