Hmm that's interesting because there are plenty of white mushrooms that are very edible and easy to identify. I think the truth is there's no real universal rules to mushroom hunting. The types of mushrooms you'll find in your locale can vary drastically and there are really solid rules to follow that are only relevant to that area alone
That being said, you should never think you're 100% on an LBM (little brown mushroom)
That being said, you should never think you're 100% on an LBM (little brown mushroom)