Years ago, I mentioned Brussels Sprouts to some friends in China and they all thought I was joking, so on a trip to England I bought some and photographed one in my hand to show them.
That didn't work; they said I had just Photoshopped a regular cabbage onto a picture of my empty hand at different scales.
A couple of years ago I found some here, and they accepted they might exist but were maybe just cabbages which had just been born!
I can't imagine what they would say about teen tiny sprouts.