I started teaching myself mycology about 22 years ago, and many hundreds of mushroom dinners since then, I have not yet made anyone sick. It's true you need to do your homework, and it's true you can kill yourself if you make a stupid mistake, but it really isn't that hard to be careful. It's a basic skill our ancestors all knew. Just be alert and teach yourself the antidotes of "confirmation bias" (which is a useful skill in other fields of life, for sure.)