Avira > how dangerous things that are done by a large amount of people are not actually dangerous – this is based on shomer pesayim Hashem.
Maybe this is an explanation: why is Hashem protects peshayim and, presumably, does not protect people who know better? The fact that knowledgeable people are not protected means that the danger is present and presumably a smart person would have to avoid it. BUT, how would a simple person know a difference between a true and a false danger (false positives). He can trust his senses on obvious dangers when he sees a tiger or a car damaging a victim, but what about remote dangers where connection between cause and effect are not obvious. So, if you tell a simpleton to beware these, he’ll fall prey to all kind of superstitions, rumors, environmental propaganda. His life will be consumed in avoiding black cats and plastics. He will be advised to spend his time doing maasim tovim. If every climate protester would simply bring food to the neighboring elderly, the world be better, and cooler, of. What do you think?