If you've ever run a family quiz, you know the problem: pick the wrong category and half the room checks out. The trick is choosing rounds where age genuinely doesn't decide the answer.
Geography is the safest bet. Capitals and famous landmarks are taught everywhere and don't go out of date. Older players have travelled more; younger players have seen more of the world online. It evens out.
General science works almost as well. Body parts, planets, common elements — most of it is school knowledge that's still in the head decades later. Hard science can swing the round either way, so keep it light.
Music is brilliant if you mix eras. One question on a 60s classic, one on a current pop star, one on a film score. Rotate generations and everyone gets a moment.
Avoid going deep on anything era-locked. A whole round on 80s sitcoms or 2020s TikTok will silence half the table. The strongest mixed-group quizzes spread questions across decades within every category.
And always end with a tiebreaker that's pure guesswork — population of a country, year of an obscure invention. It keeps the loser of the night smiling.