My wife is the youngest of a large family, most of whom retired back to this city, so the brothers- and sisters-in-law in town are all older (I'm 57), and they all like to sing. Once in a while we have a music evening. We get lyric sheets of "old favourites" ('30s, '40s, '50s hits, mostly), everybody takes turns choosing songs, I provide the accompaniment (I can fake most of the stuff I don't know), and we spend a relatively painless evening of songs.
To me, if people are singing for enjoyment, it doesn't matter much what they're singing. The fact of singing and the culture in which the singing is taking place is more important than the content.