The problem is that while YouTube and ChatGPT will get you through high school and perhaps a year of university, you'll eventually reach a point where you need information that is only available in dense books. And if you haven't learnt that skill of reading dense books, you have a problem.
There was actually an article in the newspaper just today about how a record number of university students in Sweden are struggling and failing because they are simply incapable of reading and extracting the necessary information needed from the textbooks.