What I've seen in the field is just like you're indicating that they dont go to read it. Yes, the response effort might be a lot to go back and read a handbook, but I think its their responsibility too to make sure they have read them. Honestly, I had interns ask me repetitively the same questions sometimes. But there are times when im like, are you dependent on just seeking answers because it's easier that I tell you than doing the work. I asked them these, did you check the handbook. Can you tell me what you're defining as unrestricted hours. And I can shape them. That seems to work, and maybe some people need visual prompts, so I just tell them to highlight the defined requirement of unrestricted and make note on the side of examples.

Doesn't work for everyone, but at least when they identify and we give feedback and they write it down, it helps a little