A beginner today is most likely someone who takes photos with a cell phone and then acquires a "proper" camera -- quite often as a present. Even modestly priced cameras have lots of buttons today, and the only help the manufacturer gives the new user is a manual that in most cases does not explain things very clearly, or in a well-ordered manner. The manual that came with the Canon RP is a good example: quite useless.
So the user wants to know what all the buttons do, and experimenting with them is quite likely to give worse results than he had before.
Sample possible questions:
-- Why should I choose f/8 rather than f/1.8?
-- Does 1/200 give better pictures than 1/800?
-- What is this ISO dial for?
-- Why are some things out of focus?
-- why do my pictures come out too dark/too light?
etc.
But just like little children are not ready for the full answer to the question "where do babies come from?", beginning photographers need simple answers that they can build on later. A recommended book is also helpful: it should also be at the right level.
The key to understanding this, as in all teaching. is to put one's self into the same mindset as the beginner.
David