

Grammar is only done by design in the realms of Tokkien, Martin, or Star Trek. For naturally occurring ones, the spoken language comes first, then the grammar in an effort to standardize it. So a design flaw in grammar is bit of an oxymoron for me.
Cultural norms have an influence on grammar. About 400 years ago people in England still distinguished between a familiar you (thou) and a polite you (you). And over time decided to be polite only and only retained the thous and the thees in archaic expressions. And caused the need to disambiguate the plural from the singular you with new pronouns. Japanese grammar tends to get longer the more polite and humble you want to speak. So I don’t think your can divide culture from grammar neatly. Both of them make the hypothetical exchange I made up 5x as long.









Real life logic ≠ comic book logic