I like to think our rejection of the metric system is because we are standing on principle and reject the semantic inconsistency that is the kilogram. Base measures should not be prefixed;)
Cling onto that raft! I fear it's a combination of NIH (despite the same being said of imperial, Fahrenheit, etc), fear of change, and irrational dislike of the French. Of course, Daniel Fahrenheit was Dutch/German, and Anders Celsius was Swedish.
But if you think kg is frustrating, I'm learning electronics now - every book, when starting to talk about capacitors, says something like 'However, the Farad is not a convenient unit, and you'll most be working with 0.0000000001F capacitors'. Yes, the SI unit is unhindered by a prefix, but you can't but help wish they'd thought more carefully about this before writing it down.
But if you think kg is frustrating, I'm learning electronics now - every book, when starting to talk about capacitors, says something like 'However, the Farad is not a convenient unit, and you'll most be working with 0.0000000001F capacitors'. Yes, the SI unit is unhindered by a prefix, but you can't but help wish they'd thought more carefully about this before writing it down.