Not many people are interested in being their own bank. They'd rather learn how to make fancy jpegs and print millions in fiat.
Experienced developers can figure out most things. Most devs are experienced. Most inexperienced devs are wanting to learn more marketable skills so they can get paid to become experienced.
Additionally, doing a video guide this early is risky because things are likely to change and editing videos is expensive.
Learn to read the documentation and ask questions in developer communities. Or make your own guide 😜