“Of course you can “manage in life” without knowing how to make cake. But that is not why it’s not “important” to know how to make cake. It’s not important because, well, it’s not. Why don’t you tell me why you think it IS important and we’ll go from there.”
Sorry, but I already answered this. Please read my post before you ask the same questions again and again.
“Also applies to men. And I guarantee you that no man who ever asked a shaila on a Ramban was told that some things are more important than learning Ramban and he should make sure that he knows how to make cake and potato kugel.”
I guarantee you that no boy ever did something so dumb as to go to Rav Shach with his question on Ramban instead of asking his teacher or tutor.
And I hate to break it to you, but women and men do have different tafkidim in life.
Furthermore, whenever a Gadol has reason to think that a man is not fulfilling his obligations in the home, he will tell him, and usually, much more sharply than the way he would tell a girl.
Furthermore, did it occur to you that maybe Rav Shach said this because he felt that the girls were overly stressed about their schoolwork?