Although the metric system is as entirely arbitrary as the “English” system, it has some good aspects.
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The good thing about the “English” system is it uses highly composite numbers, which is people friendly. The Metric system is good for people who count on their fingers. Both systems have to be converted into binary for computers.
People that don’t understand the usefulness of 12, 3, 4, 2, 6,and where those numbers are best used crack me up.
As to the argument about “Whitworth” measurements, I’d point out that there are other “odd” systems around, including Torx, TorxII, Allen heads, Phillips heads, and on and on. (Plumbing fixtures? Good luck!) Some are useful, but some are headed to the dustbin of history. BUT, we don’t need the government to decide which of those will make it or not.
Hm...arbitrary? Details, please. The English system is horribly arbitrary and cumbersome. Would gladly trade it for metrics any day.