TNC watches the above video of Andy Rooney admitting he knows very little about contemporary music and reflects:

What I do know is that, like Rooney, I couldn't name a Lady Gaga song if I heard one right now. But I also know that my son knows more of my music, then I know of his. He can recognize Nas, but I can't recognize, say, Drake. In other words, you'd do a lot better banking on my ignorance, than his.

Age, like all power constructs, (race, gender, class) encourages its own ignorance. To not know is a luxury of power. You don't have to know Their Eyes Were Watching God. But I damn sure better know The Scarlet Letter. (It's bad enough I'm slipping on Twain.) Age turns ignorance into a luxury, and worse, if you don't recognize it as a luxury you start to think everyone is as clueless as you. And of course you're clueless that any of this is even going on.