I switched to metric for all my personal projects right around the time I started doing any sort of project that had a form of measuring. Metric is better full stop

As an American I approve this comment.

I’ve been into 3D printing for a few years and it has forced me into metric. Now my brain works in millimeters and it’s way better

Our countries insistence on using imperial is evidence of our resistance to change. Even the creators of the system have abandoned it