> because the local library had few books, mostly older ones,
I think this is an important observation. In the age of the Web, people might not appreciate what it means when your access to information on a topic is sometimes only through outdated sources, which is a bit different than not having access at all.
I was lucky that my mom frequently brought us kids around to multiple public library branches, but I definitely remember a lot of older books.
For example, a book explaining an electric circuits would involve photos of some kind of common household item large cylindrical battery cell with screw terminals, which I have never seen, not before, nor since. And pretty much any book on computers, robots, or electronics would be at least a few years old, usually several years or a decade or more. (This has improved, at least at my current local library.)
Another effect of being exposed to lots of older books is that, although my hair is still not gray, I'll sometimes inadvertently speak with anachronistic, old-timey language that predates me.
With the old public library books, I also got a dose of vintage subtle American propaganda (e.g., freedom and justice are good, and are American; dictators and secret police are bad, and are Nazi/Soviet), though the Cold War already seemed to be ending. I'm programmed to believe that that propaganda was a positive influence, but it's sometimes uncomfortable values, when one sees an overall citizenry that doesn't always seem to have been marinated as much in quite the same mix of programming.