You misunderstand. A librarian may not know if something is true or not, but they are educated on how to research something to find out if something is true or not. As you said, their job is to manage sources, which includes knowing with sources are reliable and which sources to look at for certain types of information.
You misunderstand. A librarian may not know if something is true or not, but they are educated on how to research something to find out if something is true or not. As you said, their job is to manage sources, which includes knowing with sources are reliable and which sources to look at for certain types of information.