We had a couple of deaths a few years ago here of amateur mushroom pickers, I stopped showing people what mushrooms are safe and what will kill you that is known to me, unless one does it practically all the time the average person just isn't going to retain that good of memory. I pick about twenty verities here for consumption and medicinal uses, one can't go by pictures and to try would be foolish, there is over 5000 species of known fungi in Washington and most are editable but mixed in with the good crops are also deadly one's like about a estimated 15,000 unknown types here in Washington alone. Picking mushrooms is a crap shoot to the unsuspecting, it takes one bad one and you're a dead man walking.
Another point, what is edible here is not edible in the south and east side of the country and vise a versa, in each region of the country one has to be thoroughly instructed and supervised and that goes for plants too, deadly mushrooms will destroy the liver and kidney in short order requiring transplants if one doesn't make it to the hospital asap.