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It really depends on your teeth layout.

If you are lucky enough to have very straight and packed teeth, there is very little room between your teeth for any food to be lodged in. I used to never floss then one day I tried it and it took me 3 weeks of flossing before the wire came out clean and odorless.

That sounds like decent sized gaps between the teeth, wide jaw, not eating a ton of (sweet) stuff that gets stuck, etc. Or just lucky genes in general. YMMV.

E.g. there are many examples of people chain-smoking until the ripe age of 90+ and never having lung problems, but that does not invalidate the other 95% of the bell curve.

You probably have the mouth bacteria that doesn't cause cavities and don't consume litres of acidic drinks every day?

You don't need to floss but parodontitis is unavoidable if you don't use dental bristles.