Multiplicity

I imagine it's a lot different for people in large households, or people who 'blend' with one another, than it is for us. There's only three of us, and we don't blend or overlap mentally any more than three singletons sharing an apartment would. Even where we hold basically the same opinion about something, our reasons for holding it may be quite different, so we're really not in a position to speak for one another most of the time.