After 40 plus years of eating wild plants, I still think some of them taste 'terrible'.
I do realize that people who eat a SAD diet have a difficult time adjusting to the taste of wild foods, what you grow up with taste good to you. Plus the chemicals that are added to factory food causes a craving for them, both in people and pet food.
As for wild mushrooms, I do little gathering of them, it's too easy make a mistake. I would go 'rooming' with my grandmother for them and depended on her telling me the rights ones to eat, but she has been gone since the 70's.