It is fine that you didn't go in and it fine that the aging Americans found some innocent pleasure. It is fine that the accordeon player got a bit of money and the bar owner had 40 people spending money in his bar. Worked out for everyone. Hopefully the market would support something you would prefer, but we always have the option of singing privately with friends etc. Bar owners who have to make a living don't have to do it in a way that suits any of us. We are also free to set up a competing bar and see where the aging Americans prefer to go and/or the general populace and/or people who might come from afar to hear the specific kinds of music. And I will tell you something..probably unless they live in CHicago or Boston these aging Americans have never heard much in the way of live music. The only live music I heard growing up was in church or the local German oompah band.   Not even Scandinavian music in a place with a heavy Scandinavian population.   So don't begrudge them that small little bit of pleasure..not that it seems that you were...mg