Yes, do keep in mind that a person who is 80 years old today was only 40 years old in 1957, only 50 years old in 1967, and if they liked the pop music then, they'll probably like it now.

I accompany (singing) friends of mine who play at several seniors/nursing homes (Canada). They do a mix of old country and western songs, fiddle tunes, a gospel song or two, a couple older tunes. Most of the residents know the words to these, especially the C&W songs, and those that can, dance when the fiddle comes out, including some of the wheelchair using residents.