There's this fascination of people towards eating exotic stuff (defined as "non domesticated plants"), like wild garlic (Allium Ursinum), I see people selling leaves at the market. A slight mistake and they're buying Lily Of The Valley which looks very similar but will kill you.
Or wild mushroom people. I'm not touching wild mushrooms with a barge pole, couldn't give a s*it what experts say and how great they taste. I'd rather eat bread and water and stay alive than risk kidney failure and agonizing death.
I guess people are curious on experiencing interesting tastes but as they say "curiosity killed the cat".