I mean out of the 2,000 mushrooms in North America, there are all of 20 or 30 that are seriously poisonous. So it doesn't take all that long to learn the most h

I mean out of the 2,000 mushrooms in North America, there are all of 20 or 30 that are seriously poisonous. So it doesn't take all that long to learn the most harmful ones. Especially since you don't even need to know whether or not a mushroom is harmful, only if it looks vaguely like one of the harmful ones.