I'm inclined to agree. Do you happen to have a source though?
https://www.amacad.org/humanities-indicators/public-life/boo...
If 53% of all adults read at least one book in the last twelve months (as in 2017), it's still possible that the 33%/42% numbers could also be accurate ... but it's extremely unlikely. It would require an almost complete separation between habitual readers and non-readers, with practically nobody in between who has read books some years but not others. You only have to do that once in your entire life to shift from one column to the other. I rather suspect that the scary numbers are for relatively young adults, which is a non-representative sample of the whole, and that they're being misremembered or misrepresented as pertaining to the entire adult population.
P.S. The 53% number is still enough to make me very sad. It's bad. I'm just saying it's probably not that bad.
Who doesn’t read books in America? | The Pew Research Center
https://www.pewresearch.org/fact-tank/2021/09/21/who-doesnt-...
And the NEA offers some insights on the downward trend in reading (2007):
To Read or Not to Read | The National Endowment for the Arts
Then the other issue I have is that since I know a book will consume me, I have a hard time deciding on the next book to read as I don't want to invest a chunk of time getting part way through it, just to find out that a given book is junk.
Also I have a number of really good books that are on my abandoned book pile. These are ones that I started reading, go half way through then got back into "life" mode. Then after not reading it for a couple months I have a hard time picking up where I left off (already lost parts of the plot), but I can't start from the beginning either because I already read that part. I have to wait till I mostly forget the parts I read in order to start them again.
I myself had a protracted dry spell of book reading but picked it up again about 5 years ago and noticed that it really turned my brain "on" so to speak. My vocabulary increased, but I also felt I was able to store and retrieve information from my brain much quicker.