Has anyone put dorms in other worlds?

For a couple seconds I was thinking adding one dorm for each of my private High Schools, but because of way too few lots, I dropped it. Will use the "roommate" function in some other settings though, such as Robberton Hostel in Oasis Springs. A sim runs a small hostel there with 4 guest units, and occasionally single sims might lodge there while I decide what to do with them. But there are always available rooms, and as I do control everyone there's no real challenge. So, now I'll fill up the place with NPC students/room mates - if it works like I hope.