NGL it is crazy to me to declare no one needs a library when a new hardcover book is at least $30. I would be out hundreds of dollars, probably over a thousand a year, if I had to buy new every time I wanted to read some book I heard of and maybe didn't even enjoy (the guilt-free "read 20% decide its not for me" is amazing).
Basically most people do not read, and most people here have no social life.
Libraries are for reading and socialising, so many users here have a really really hard time to imagine that someone might have some benefit from them.