They have not read enough literature to be taught by it how to read it

You only have to teach literature to realise that most young readers are poor noticers. I know from my own old books, wantonly annotated twenty years ago when I was a student, that I routinely underlined for approval details and images and metaphors that strike me now as commonplace, while serenely missing things which now seem wonderful. We grow as readers, and twenty-year-olds are relative virgins. They have not read enough literature to be taught by it how to read it.

J. Wood, How fiction works (10th Anniversary edition. 2019), 62

I don’t say things have got worse; I merely say the young wouldn’t notice if they had

When you are young, you think that the old lament the deterioration of life because this makes it easier for them to die without regret. When you are old, you become impatient with the way in which the young applaud the most insignificant improvements - the invention of some new valve or sprocket - while remaining heedless of the world’s barbarism. I don’t say things have got worse; I merely say the young wouldn’t notice if they had. The old times were good because then we were young, and ignorant of how ignorant the young can be.

J. Barnes, Flaubert's Parrot (1984), 199