I think it depends what circles you move in ~ I have been to two knitting/craft groups in the past two days and both have included interesting discussions about the books that people are currently reading.
All of my friends read and we swap books and discuss them.
My church has just started a reading group and it has been very well attended.
Several members of my family read a huge amount and their houses, like mine, are full of books. Sadly I also have family members who never read. This is nothing to do with age ~ we have young & old in both groups.
What makes me very sad is that I was in Waterstone's on Sunday, choosing some books for a younger member of my family. A boy, aged eight or nine, was looking through the bookshelves with great interest. His DM was looking very bored and said to him "How much longer are we going to be in this dreadful shop? There's nothing for me to look at!" That's dreadful and, if that attitude is prevalent, yes, we will have declining numbers of readers