I'm A Banana
Potassium-Rich
This would make for some scripted role-playing. Social interaction is more freeform than that.
Yeah, mechanics are never 1-to-1 representations of reality. Actual combat doesn't work according to initiative, either. We don't need to set an arbitrarily higher reality bar for social mechanics than we do for any other mechanics. Which was part of the point I was making by describing alignment as a personality test - yeah, nobody in real life is entirely defined by Lawful Good. Nobody in real life is entirely defined by INTJ, 4w8, Pisces, Rooster, or blood type O, either. Replicating reality isn't the point. Encouraging people to perform their characters is the point.
Something like "go around the table and everyone describe what they want to do before the NPC responds, keep it to about a minute of character action" wouldn't go awry in most games, I think.