I'll note somewhat abstractly that while 'expounding your moral position in response to a direct question' is not proselytizing, it is certainly something that can pull one into that frame of mind. This is particularly the case when the direct questioning has persuasive motivation.
The objection is valid, so strike from grandparent what I quote above.
The decision is a decision but the claim appears false.
Tyler Cowen argues in a TED talk (~15 min) that stories pervade our mental lives. He thinks they are a major source of cognitive biases and, on the margin, we should be more suspicious of them - especially simple stories. Here's an interesting quote about the meta-level: