I work with elderly and am forever going on courses, in some cases its appropriate and others it isn't. I think you're probably reading too much into it, now if Henry is being told to sit down because they don't want him moving then Id be more inclined to be worried about that infringement of rights than the good boy thing. We've had a big hoohah recently when someone complained about their mother watching childrens programmes but she loves them, she laughs and loves the bright colours. Im not going to turn it over when she clearly enjoys it.
Im call the people I work with love, my loverly, darling, sweetheart and at times miserable old git (followed by give us a smile). `Like Ummmms nan we have lots of residents that are going through their childhood again. Personally I try to commend the act and not the person, telling them they are doing brilliantly and that's fantastic or well done, ethel/molly etc