Conservatives eschew change.
taking up the metric system is change
Conservatives continue to use the Anglo system
We were required to use metric dimensions on a contract we had. There was lots of grumbling. I collected all the Anglo tapes and provided metric tapes. Some brilliant soul found a metric anglo tape. After a while, they realized metrics were really not all that bad.
I use metric measurements mostly. I can think in millimeters
NASA lost a $125 million Mars orbiter in 1999 because a Lockheed Martin engineering team used English units of measurement instead of metric.
It’s what you learn first.
Either is ok if you use only it, but trying to reform your thinking pattern IS tough!
For me; I’d give my right arm to be ambidextrous.