Truth is I've seen the moon during the day, and if you asked me "when is the moon visible", I'd say "during the night" and if you said "ah ha trick question!", I'd say "unless cloudy", or "not the entire night" or "also at dusk" or "depends where you are" or other "guess the uncommon answer I'm thinking of". If anything your conclusion should be that I'm an idiot, not that I "never look at the sky period". But more reasonably your conclusion should be that people look at hoofprints and see horses not zebras - it's like asking "on what day of the year do you get older?" and getting the reply "on your birthday". It doesn't mean people think they don't age on other days or don't look at the clock, period, it means people think you're trying to hint that it's your birthday, or that you're blanking on the word "birthday" (or not a native speaker and don't know it), rather than expecting you stopped them for a science grilling.

You're going to say it's not a trick question; but it is a short question and expects a short answer "it's visible when X", and there isn't one, except the common approximation "Day: sun, Night: moon". Apart from that it's just a list of things which might be in the way of seeing it, and there's lots of them: "When it's above the horizon, enough not to be blocked by trees or hills, and the sky is clear, and the sun isn't too bright, and you're outside, and it's not behind a tall building, and your eyes are open, and you're facing the right way, and you aren't blind, and..."?