Which is fine right up to the point you have to do anything that involves combining units, or even using different derivations of imperial units. In engineering normally if we come across anything archaic/american in imperial, we immediately convert it into SI units where the whole system is designed to work together, unlike this: -
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A digit has 3 nails , and a palm 4 digits, what kind of hands did these folks have?
I've three nails on one digit.A digit has 3 nails , and a palm 4 digits, what kind of hands did these folks have?
A bit like yours.Ah, an intelligent, well reasoned response.
Maybe the standard of mathematics taught now is not so good, so metric is preferred?
A bit like yours.