Student servers keep asking me to close because they have school in the morning.

I’m not in school but I work with a bunch of students. I don’t mind doing a favour from time to time but since school started, every student server I work with asks me to close the restaurant at 3am and let them go home early because they have school.

I’m getting sick of being asked. I think they should find a job that aligns with their schedule or rearrange their availability.

Tonight I’m in at 4pm and the closer is in at 5. He’s going to ask me to close and I don’t know how to say no while still maintaining a good relationship with my coworkers.

I know the easy answer is to just say no but I like these people. Does anyone have any advice?