It's one thing to answer questions when they are asked, but it's pretty darned condescending to treat adults like they can't come up with the questions.

I'm in a position to do this a lot when people repeatedly show up with jeans on, or really heavy gear, but you know what? I'll discuss it with them when they ask. They usually ask about my gear - I can always explain why I carry what I have and let them draw their own conclusions.