My friend recently started reading after seeing me read so often. She kept bragging about how fast she can read pages and I was telling her to relax its not a race just enjoy the book. Fastforward a few days and she got like 30pages in and gave up. It was an ok book, thief of time by Terry Pratchett.
I think for a lot of people reading is so mentally different from what they're used to that its very hard to do let alone to find pleasure in.