Oh yeah, totally makes more sense to say "it's 3/64ths of an inch" than "it's 2 millimeters." Completely reasonable.

So reasonable, in fact, that in most manufacturing that still uses imperial measurements they long ago abandoned fractions and moved to decimal inches.

Which leads to unholy abominations such as the wood shop sending over "cut off 3/64ths" and the metal shop cutting off 0.046875".