I’m not saying give them computers - there are computers in libraries. I’m just saying the means to learn to read are readily available for anyone who wants to put forth the effort - and libraries are already set up to teach people to read.
Libraries are full of books. They exist to provide content to people who can already read. The ability to read is something that most people acquire somewhere between age 3 and 5. People who fail by that point are left to the public schools. Given the dumbed down state of the public schools, they are likely on a trajectory to failure in life by that point. Social promotion will move them along until the drop out.