For everyone saying “Why is this even a question,” let me point out that informing students on what office hours are for is a common component of programs to help first generation students. Many first gens are reluctant to “bother” their profs while students from higher SES backgrounds just naturally assume that the office hours are a time to discuss term paper ideas, career plans, etc. I don’t know if OP is first gen, but not everyone arrives at college with the same amount of cultural capital.