> most of human communication is walking on eggshells
That's not human communication, that's Anglosphere communication. Other cultures are much more direct and are finding it very hard to work with Anglos (we come across as rude, they come across as not saying things they should be saying).
What culture are those? Scandinavian? Those often just say nothing.
Depends on the culture as you said, but some of them are even less direct than English speaking countries. Japan for example.