Given a specific focus, you only need a few good videos from YT. For example, perhaps you are using Khan Academy with your kids. Then you augment it with one o

Given a specific focus, you only need a few good videos from YT. For example, perhaps you are using Khan Academy with your kids. Then you augment it with one other lecture series. You're not going to augment that with yet another lecture series on the same subject, are you? Kids don't need access to the whole cultural tapestry that is YT, they only need guidance as to the highest quality resources.