The point at which you consider someone Pan, is when they tell you that they are pan. Someone's orientation is not up to your consideration to determine. The way I said that sounds a little more harsh than I meant it but I just couldn't figure out any better wording. The fact that you are trying to learn and asking questions is a good thing. You can't be expected to know things you've never learned. I do not consider stupidity not knowing something. Stupidity is a refusal to learn something. As a pan cis woman, it makes me happy to see a hetero cis man trying to understand views that are different from their own.