Earlier quoted context omitted.
> At my university, I was taught by professors and grad students, none of whom had a teaching degree. Professors and grad students may well have done a course on how to lecture. It is obligatory and/or an easy way to pick up credits in many PhD programs. In any event, grad students teaching badly , because the department has allowed the more competent faculty to put their teaching burden on grad students, is a common…
Maybe that's a new thing, because I've never heard of it. I have recommended to professionals that they take a public speaking course, but those were not part of any degree program.
You mentioned in another post attending a lecture from Feynman. I think you might be a few decades behind modern academia.