Yes the amount of damage this does to kids must be huge.
Some people here argue that "math is also what kids don't like" but math and chemistry can be understood by a teenager even if he doesn't like it. But these "classic" books can't because much more life, adult problems and having children, deaths of parents and illnesses have to happen in order for one to comprehend this books.
It's like trying to force a 8 year old to read romance novels: since his sexual hormones are not yet activated, he won't understand why a boy all of a sudden likes a girl.