From the comments:
"if there are no reference librarians in 20 years is that good or bad for society?
It’s good because it means that more information is available to a wider group of people and it means that we (society) have learned how to find the information for ourselves. Self-reliance is a good thing."
Provided relevant information is readily available and easily findable in 10-20 years, would the disappearance of libraries matter to anyone but librarians? I’m thinking probably not. Librarians fret about the future of libraries, but does anyone else?