I have a massive library of books I've been collecting since I was a child. My 17 y/o son lives with me, and never reads a book, afaik. Sometimes I think that it's sad, but when I talk to him I know he's just as smart as me. People absorb knowledge in a lot of different ways.

Also, I've heard that zoomers and younger gens tend to actually read more than we ever did, just not in book form. They read quite a bit on their phones and other devices. Dunno if that's true or not, but it makes sense to me.