I'm inclined to agree with others, there are generational differences, we all grew up in a time when there was precious little television, so we were forced to make our own entertainment and reading was one such way of keeping ourselves from being bored. I grew up in a house that was crammed with books so much so, some were piled up on the floor sometimes. My father was not a diy person, in fact a bit useless in that respect, and my mother was prone to say from time to time, "before you get married, make sure whoever you marry can put up shelves!" with a sidelong glance at my father, conveying to me that was some pre requisite for a happy shared existence. I vividly remember my visits to libraries from the earliest age and treasured books at birthdays and Christmas.
I did the same for my own children, one is a voracious reader still, I'm pleased to say, the other, apart from devouring the Harry Potters back in his school days, hardly ever picks up a book, apart from his small stash of his own personal "bibles" not in the religious sense, but books pertaining to exercise, diet and wellness all of that. It is fair to say they, as other have stated, access all manner of information pertinent to their lives and interests via their devices, and it can be serious and lengthy material, so that's reading of sorts it's just a different medium to books. My grandchildren loved their books when they were little, and I think they always have one on the go, but they come to ours armed with their gadgetry, which they do swear they're only allowed at the week-ends at which time any book gets kicked into the long grass.
When one of my step grandchildren hit a significant birthday a while ago, when asked by friends what she would like, she replied "just give me the best book you've ever read" thought that was a great idea.
My husband is an avid reader, God he gets through books in a nano second, his preferred genre is crime, but occasionally he deviates, my choices are more eclectic, I always have a book or two on the go, it's how I switch off. Books have always been a source of joy, but I have to admit, distractions are many and sometimes I find it harder to switch off completely, I had the same problem with yoga. Just zoning out I swear it never used to be this difficult.