I remember well playing at these facilities. Most often an assigned "guard" would accompany me to the main door to prevent any residents from leaving the facility. What I remember more though were the "residents" who lived there. Many would just sit there with no expression on their face during the performance. I wondered whether my music was having any effect until I noticed some of them were taping their fingers keeping time to the music.
Now at age 82 I hope I will not become one of those "residents"!
Dick