This post from hack library school talks about working in a public or academic library after getting their MLS. She talks about how they are very similar. I visited South Mountain Community College Library last year. It is run by the Phoenix Public Library and the Maricopa Community Colleges. It is a public and academic library. I enjoyed visiting there. I think it would be great to work there. You get to help a lot of different people. You have to know a little about a lot of different things. You even need to keep up with news and popular culture for kids, teens, and adults.
Five years ago I made a post about how this applies to technology.
There is even a book called Range: Why Generalists Triumph in a Specialized World by David J. Epstein that talks about this very topic.