Of course, in "wait culture", the same problem exists, but it often manifests by evolving into "interrupt culture" for those whose body language is wrong or charisma too low.

I.e., the higher your charisma/social power in relation to your conversational partner, the more likely you are to be able to impose "waiting" behavior on them, and the more likely you are to get away with "interrupt" behavior yourself, even in relation to the wider group norms.

And this isn't necessarily a bad thing - even among those of us who have a largely Wait-based circle of friends, I'm sure we all know "that one guy" with that one particular set of pet subjects/rants, for whom everyone will interrupt and say "not this again, Dave".