Yep, the good ol 'back in the days'...
So nothing can ever change anymore.
But hey, if you really want to live in autarchy in a closed system, good for you: the rest of the world is going elsewhere.
Don't forget it was a revolution of the American colonies against the British. So they kept the British weights and measures to become distinct. Quite logical...
And nowadays - splendid isolation. And a source of calculator functions noone else needs.
