Why are some people unwilling to help their roommates bring meals?

I suggest you bring food for your roommate as much as possible. If you start, you won't finish. You got it? As long as you go to eat, people in the dormitory will raise their hands and start telling you what she wants to eat, and then make various demands. So you bring food to the whole dormitory alone, and sometimes you will be complained that you come back too late, and the food is not what she ordered. And it's hard to please. Who wants to do this job?