If you grew up in a city basically everything has been taught to you by media you've watched as a child, education in school, and narratives fed to you through news. Even if you're fairly smart, you have layers upon layers of indoctrination built up that are nearly invisible unless you look at them honestly. For some people they just cannot do this, and they basically become NPCs. They get fed their premade dialogue through those information circuits and even if it doesn't really make sense they will say it. They effectively cannot change their minds, and must rely on the "experts" to know what is okay to say or not.