I remember learning this idea when i was younger as its not apparent to many individuals when they have to do mundane work for no reason. This is why you'll hear things like, "When am i ever gonna have to find the derivative in real life" or " why do we have to analyze the why theres a dirty spot on the brides dress". Yeah you might not need them but its not teaching you how to find a derivative, its teaching and developing your complex problem solving skills which are used everyday. Same goes for the analysis of the dress it is not teaching you that the author demonstrated the end of her purity through a dirty splotch on a white dress. It's teaching you to look deeper into things and not take something at face value, and don't get me wrong sometimes it is good to take it at face value, but English teaches you how to do more than that. So when you hear comments about how we should how to do taxes or change tires in school right to a degree, but ignorant as its is equivalent to learning long division at face value not entirely important and many forgot how to do it. Instead of teaching them this teaching kids to learn gives them the ability to apply the the ability to learn on a dedicated effort to learn these skills and can be applied to other skills that need to be learned. Lastly, if you taught a kid how to change their oil them told them solve a bug on their computer they would not be able to be with learning to learn they could.