I don't think Youtube is all that great for learning the kind of structured basics they teach in school. Many people are self-motivated enough to watch videos

I don't think Youtube is all that great for learning the kind of structured basics they teach in school. Many people are self-motivated enough to watch videos on woodworking or sports or video game production. Less so for algebra or grammar, but these are important base skills. This is part of why all the online course websites have such abysmal completion rates.