system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are most librarians required to have college/advanced educations?

As a frequent library user, I always found it curious that librarians required bachelor’s and/or masters degrees. From the end user perspective, they mainly sit at a front desk and answer basic questions or help customers find books. 

What exactly do they do that requires a four year degree?
gpt
A library technician (the job you described) usually does not require a college degree. A librarian’s job is different. A librarian curates and manages a collection, organizes resources, and manages finances among other things.