I think this is thinking outside the box to help these kids concentrate on their school work.
Yes, the opportunity to shower and do laundry is an obstacle for homeless citizens who are trying to help themselves. I have an acquaintance who sleeps in her car, in between jobs, and I hire her from time to time to take photos at my weddings, but she needs to come to my place a couple of hours in advance to shower and do her laundry so she can be presentable.