this is so true. There's huge variability in competence. and many doctors have fled to boutique medical care, or whatever it's called, since the recent changes in healthcare.
I worked with a woman who kept isopods as pets. She had a little terrarium at work with all sorts of breeds of isopods. That's where I learned you could buy isopods online.
General class in USA, not currently active. More interested in tech/building than conversation/contesting although POTA and SOTA hold some interest, as does field day. Perhaps when I retire those might become a thing I do.
While I think it is true that mistakes cannot be undone, it's also the case that most mistakes (even fairly bad ones) are not a sentence of doom. There are still choices to be made in the future (if you think there are choices) and you can always take the stoic route which is imo quite useful regardless of the question of free will.
There is no "why" -- it happened and was not selected against; it may have been adaptive and that is a kind of why, I guess. I think it would be better to be clear about this in science communication.