She will need to be available to residents at times when she may want to be “living her own life”. She will need to be able to enforce rules, including one’s she may not agree with.
It’s a good opportunity to help classmates, build community, etc. Good listening and conflict resolution skills are critical and this is a chance to further develop those. Ime, kids who naturally have these skills enjoy being given a forum in which to exercise and hone them. I do know one young woman who became so involved in hall issues that it wasn’t great for her own mental health, but she did have the right disposition and skills for the role. So maybe your D should consider how she will do the job and set boundaries?
I think, in addition to the monetary rewards, there is often appeal to being in this type of authority role. If that is a pull, does she feel equally committed to empathy and community?
Personally, I would never have wanted to make this kind of commitment to a hall – iow, a group not of my choosing – but I also recall several RAs who were beloved by their cohort and clearly fostered community in a way that the community chose it!