Nope. Nope. Nope. No way is a mushroom from outside passing my lips. Good god they all look the same and even if they don't - are you 99.999999999999 percent sure?
Nitpick: a healthy young person has ballpark 1 in 10 thousand chance of dying per year. So it's enough to be 99.9999% sure because extra nines don't really make your life safer.
I'm personally willing to throw a couple of 9's on that figure to avoid dying the mushroom death.
This is one reason I generally advise beginners to learn the few deadly mushroom species alongside any edible ones they're learning, and why some edible mushrooms are considered to be for more advanced foragers because of the possibility of confusion for beginners. But there are many species of edible mushrooms with zero toxic (much less deadly) lookalikes, which is where people generally start.
If you learn just a few things about mushrooms, they stop looking the same. Also, there are only a handful of deadly mushrooms in any given region, and you can learn those specific species as well. It's not that hard to get to 99.9999999% sure that you're eating an edible species.
An old Check proverb says something like: all mushrooms are edible; some of them only once :-)
That one and "there are old mushroom hunters and bold mushroom hunters, but no old, bold mushroom hunters" get told about once per day per thousand people in any online mushroom group.
Agree. Better safe than sorry. If you don't have a minimum experience in mycology don't do culinary experiments.
Yes... and -- the minimum experience needed to identify, say, chicken of the woods (Laetiporus spp.), chanterelles (Cantharellus spp.), or lion's mane/bear's tooth/coral tooth (Hericium spp.) is very, very low.