> what would happen if tutorials just disappeared. People would have to do their own research and learning. Maybe things would take longer, but I think the people would benefit from it.
I sincerely doubt it.
When the barriers to learning are raised, we should expect to see less learning, not more.
I learn a lot from quality blog posts and YouTube videos, on all sorts of topics. I have no interest in taking an undergraduate degree in aeronautical engineering or political science, but with easily-consumed 'tutorials', I can absorb a basic understanding of all sorts of topics.
Were these resources to go away, I would certainly be less knowledgeable, not more.
Also, I'm not sure that People would have to do their own research and learning means anything in the first place. We're talking about the quality/quantity/availability of learning materials. That's all.