I absolutely agree about no ground floor apt for DDs - dorm or apt. One has to think about personal safety. Freshman UT-Austin student killed last night going a short way from dance rehearsal to her dorm - evidently a homeless 17 YO has been arrested with her bike and was burning her items. This is a terrible crime.
Youth do let their guard down a bit due to thinking they will live forever, believe in the safety of their surroundings, and in other circumstances wanting to respond in a positive way and be friendly to someone who they should not trust so quickly because they should not trust them at all.