Another big problem with metric is the names.
Mile vs kilometer
inch vs centimeter
pound vs kilogram
Too many syllables. They're so awkward that people use slang like "clicks" or "k". And context clues to know if "kilo" is a weight or some other measurement.
Metric is absolutely better for science and engineering, but for everyday life it's worse or at least dubious.
edit: it's funny the inferiority complex metric people have. This is objectively true, and even in wordy German they still use "meile" sometimes in songs and other places because "kilometer" is even too much for them.
Another big problem with metric is the names.
Mile vs kilometer
inch vs centimeter
pound vs kilogram
Too many syllables. They're so awkward that people use slang like "clicks" or "k". And context clues to know if "kilo" is a weight or some other measurement.
Metric is absolutely better for science and engineering, but for everyday life it's worse or at least dubious.