I'm surprised that in nearly 200 comments, nobody has pointed out that hominid jaw evolution has been trending smaller for millions of years. Problems such as c

I'm surprised that in nearly 200 comments, nobody has pointed out that hominid jaw evolution has been trending smaller for millions of years. Problems such as crowding and malformed wisdom teeth are a symptom of an in-progress adaptation - it is easier for evolution to change the size of the jaw than the number of teeth. Broadly, the issues with our mouths all fall under the umbrella of rapid (on an evolutionary timescale) changes to our diet and lifestyle, far predating the development of agriculture which is merely the latest brick in the wall. You may be able to mitigate some problems by adopting an earlier dietary style, but you may also cause other problems. We are not perfectly adapted to any environment; we are a work in progress.