Yes, although they may slip into the imperial units in their communications with ordinary folk.

They probably cover it for their CEO who makes millions per year, but for ordinary folk? Hell no.

The Finches are at the top of the chain that Jem explained because they do not belong in the other groups he listed. The Finch family are ordinary people and live close to ordinary folks (neighbors) According to the four kinds of folks there is ordinary folks like Jem, his family, and neighbors. The second type of folk is like the Cunninghams who lives out in the wooded area. Third type of folk is the people like the Ewell's who live down by the town dump (look for food out of the dump) and the last type of folk is the colored ones.

Stanley T. Richards has written:

'Some ordinary folk, or were they?' -- subject(s): Genealogy

A folktale hero is an ordinary person who is often a step-child or a neglected child. They do not have superhuman abilities, but are out o f the ordinary in other ways. They are called to go on a journey and face challenges. They are usually helped out by talking animals or magic.