Definitely agreed!

If it makes you feel better, in one of them (I think it was in Okayama), there were three people at the venue - owner (70s), and two girls who lived in a different city but were younger than me (mid-20s). We chatted for a while, and apparently all three in a trio, where the owner plays ob piano and the girls do tap dancing. It was the coolest thing ever for me! He even played some on piano for us. But, if I recall my conversations correctly, there was some interest from younger Japanese population to open up a similar place after they retire. Maybe there is some hope!