But nowadays people have internet, so I guess it's not THAT important anymore. The ideal library is just a website that lets you download pirated ebooks for free.
The utility of the brick-and-mortar is that some/(many by state) libraries include services and physical items that can be checked out besides media. Plus, besides free Wi-Fi and meeting rooms, it's a non-consumption location to exist in a physical public space. There aren't many more free spaces in America. And, there are millions of people who can't afford internet, a tablet, a computer, or have a place for books. Millions of books and historical local newspapers don't exist in electronic form!
But no, really, (most of) America is truly unwalkable for almost any activity.
There's a road I would have to walk down to get to anything that isn't on my street. One lane each way, no shoulders, no sidewalks, and very poor visibility of oncoming traffic due to an inconveniently placed hill.
The nearest public library to my childhood home was 2.2 miles; I would occasionally bike to it before I had a car, but it involved crossing one major street.