I do think that they should have substance-free housing available on campus. There seems to be a large drinking problem in the Dakotas, and seems like it's socially acceptable to be underage drinking. However, I don't think many younger people realize that binge drinking can cause a multitude of problems and interfere with school work, plus they can have drugs slipped into their drinks.
I didn't drink much while I was in school because I worked full-time and went to school full-time for awhile, so I didn't have the time to socialize a lot. I also lived off campus, so I don't think I was exposed to as much of the underage drinking. Then when I was the legal age to drink, I'd often opt to be the DD when I did go out with my friends that drank, because I didn't like having a headache the next morning.
I think a selling point of substance-free housing would be appealing to other students also that don't have addiction problems but that would rather just avoid being around people that binge drink or do other drugs. Also, I think it would be good to have a mixture of people in the substance-free housing, other than only people that had a substance addiction problem. If these people can see other people having fun and enjoying themselves without alcohol or other substances, I think they are more likely to stay away from their old habits and form new good habits and ways of having fun.