Physical libraries seem so inefficient. Can't the same thing be accomplished at a fraction of the cost by distributing laptops with subscriptions to KhanAcademy etc ?
Consider extreme rural areas. I've lived most of my life in rural Alabama and libraries provide an essential resource for many. Giving these people a laptop and a subscription doesn't help much if they don't have a decent internet connection (or one at all).
There is still value in WiFi and a quiet place to work, especially if you're not wealthy and you don't have an office set up in your home, or don't have good quality internet, or home internet at all.