Old people don't read, except when they do
Here's some helpful information from the Associated Press, in a story about reading habits in America: According to the story,

"One in four adults read no books at all in the past year, according to an Associated Press-Ipsos poll released Tuesday. Of those who did read, women and older people were most avid…"

Later in the story:

"Who are the 27 percent of people the AP-Ipsos poll found hadn't read a single book this year? Nearly a third of men and a quarter of women fit that category. They tend to be older…"

So, what we know for sure is that people who took the poll who say they read tend to be older, whereas people who took the poll who say they don't read tend to be older. Thanks, AP!