My audience is very mixed in age. A surprising number of the younger ones request older songs once they know that is what I mostly do. They often tell me that they grew up listening to their parents' music and they know the songs and that they bring back good memories.
My main gripe is the young ones from six to twelve years old who want to get up and "dance" to "dance" music while their doting parents look around the room to see who all is watching their darlings gyrate. Sometimes I'll pull a couple of their songs up on YouTube and indulge them, but usually I don't. "Watch me Ney Ney" BS.
The fact that I'm playing an arranger NEVER comes into the picture, unless it's another musician wondering about the technology. No one but us even knows the term "arranger".