I have a hard time believing 54% did read a book. 18% of the U.S. population is functionally illiterate, and I don't know for you, I really don't feel like reading a book after I work the whole day at a computer.
This is a perennial observation about general illiteracy in the US but who was even alive when this wasn’t the case? lol
Fahrenheit 451 is a 70 year old book complaining about this exact problem.