We have just got to get back to metric. When I was in school that was the only unit of measurements that I used. Due to chemistry, physics, biology, etc.
I continued to use it whenever possible and praised the day I saw the first gasoline station that had prices up in liters.
Then I drifted away from metric when the USA started regressing back to Imperial. I didn't realize how much I had regressed until I thought of the platter size in cm instead of mm. That made one heck of a coffee table out of it.
Have a laugh on me.
Enjoy,
Jim