One of my teachers said:
The best way to learn is "learning through videos."
It is not true. Depends on what you teach, what others want to learn.
With videos, if you want to find a point, you must know when it is in that video. If you don't remember, don't note it previously, you will have to spend more time than you are ready to spend, to watch most of the video in order to find the point you want to learn.
With books, power points, you can find what you want more quickly.
I prefer to read books than watch videos. Videos are helpful if you want to practice something. Watch a practical video after you already read books.
Videos are only suitable if you prefer demonstration teaching, but with bitcoin, it is a must first that reading and researching could pave way to a more understanding in bitcoin. Maybe it’s more on hardwork and patience in the first place, that’s why I’m glad OP that you made an effort for the sake of your neighbors. That is faith, and hopefully those young generation will also develop their own interest and faith in bitcoin.