Tonsils, spleens, appendix, gallbladder - - - the list is long of organs the public is continually told we really don't need. We are told this by doctors who make money by referring us to surgeons who make the real money by removing these uesless organs. That is idiotic beyond belief.

Do they believe God made a mistake? 

Well, of course!  The doctors certainly know much more than God, right?

https://healthimpactnews.com/2018/is-the-gallbladder-really-not-needed-and-ok-to-routinely-remove-by-surgery/

They are clueless jackasses and I avoid doctors as much as possible.  When asked a direct question, NONE of them will answer unless they turn your question around so it benefits them.