A little bit on the softer side, but It's good to encourage a feeling that you can just say something publicly even if it might make you sound slightly naive, because it's WAY more common that everyone else actually has the same misconception or bad assumption. People tend to do that once, someone makes a rude comment about them not already knowing, then they pretend to know things from then on. I think that has to come from the top by example. People will emulate sounding like the highest up person they're interacting with on a project or in a meeting.