From what I've read in /r/teachers, many kids refuse to read anything longer than a couple of paragraphs.
I recently saw a post about some grown-ass adult shocked that his GF recommended a "chapter book", as he put it.
I watched a podcast recently wherein some actor talked about writing a book-- "... I wrote one-hundred and twenty thousand words, which is like twice what any sane person writes for a book." I write as a hobby, and have written a handful of books of around 150,000 words, just for fun.
I'm not surprised so few people read for fun anymore--texting makes up most people's reading these days, as far as I can tell. No one cares to concentrate on one thing for more than the length of a TikTok video.