It takes an incredibly small amount of research and a miniscule amount of care to nullify all of the risk of death. If you've ever seen a picture of either you are simply not, under any circumstances, going to confuse Laetiporus cinncinatus or any of the handful of for any deadly species. If you're using an ID book, you've just made it basically impossible to confuse anything outside of a couple of genera with a deadly species, and the book will make sure you know what the lookalikes are, even if they aren't at all toxic.

I know people who self-admittedly overcorrect and refrain from picking even a few easily-distinguished mushrooms that happen to be vaguely similar colors and shapes to deadly mushrooms, but the idea that you need to not pick any mushrooms at all, ever, in order to eliminate the risk is silly.

Picking wild mushrooms is not done (except by those who haven't done the trivial amount of info-gathering that is actually necessary) by gathering lots of different mushrooms and then identifying them and eating the ones that appear to be edible species. It isn't done by taking a field guide out and IDing mushrooms from scratch and then eating the ones that look like the edible ones in the book. It is done by learning species one or two at a time, along with all of their potential lookalikes. People who do this and start with easy mushrooms will encounter far more risk both from getting to the foraging area and from walking around in it than they will from the mushrooms.