I get what you're saying, but, I take issue with the premise.
Day to day human scale stuff benefits from human scale relatable measurements. Using a scale that slides from subatomic to the expanses of the universe disociates the world from the physically observable, and, therefore, moves humans out of intimate contact with the world around them for a sanitized, clinical view, a godless, materialistic view of the world.
I make things for a living. I'm highly conversant with metric and imperial. There's very little functional difference between 1mm and 1/32 of an inch. But, you get built in advantages from the fractional math that base 10 measuring systems simply don't have. Base 12 is much more conducive to slope and proportions, again, in a more human accessible/scale manner.
I don't care what you use to measure things at either femtoscale or parsecs. Those don't relate to what I'm focused on.