My state has some of the best libraries in the world and the only requirement to get a library card is to reside in the state. That's a big geographic boundary. Once a person has the card, a lot of interlibrary loan and online borrowing possibilities exist.

I imagine a for-profit library would be largely frozen out of our interlibrary loan system and all the reciprocity involved in membership, but... maybe not? I don't know, but I suspect that this model of deprofessionalisation is going to be limited to libraries in small towns and municipalities.