This tends to make them either misunderstand the text, read it literally, or just get bored of books in general. On one hand, I admire the fact that great books are read by young people (something which isn't true in my country), but I wonder whether it ends up being counterproductive.
Adaptations running away from the main story to focus overtly on stuff that attracts the audience instead of being faithful to the crux of the source material doesn't help either.