Another snac bar that he brought me to had an interesting story. The snac bar was in an apartment complex (due to Japan's funny zoning laws) at the nightlife district, could maybe fit 5-6 max. The place was filled with blues and jazz LPs! When we went there, there was only one man sitting, eating omelets and a talking to the owner.
Turns out the owner used to be a salary man in Tokyo, but got sick of the corporate banking life, took his savings, moved back to Kyoto to open his small bar. He loved music, particularly blues and jazz, so just bought an apartment and rebuilt it on his own as this jazz n blues bar. He barely made any money, lower than minimum wage. but he said to him it was a life style, and he enjoyed it and wouldn't have it any other way.
The guy eating the omelet, turned out to be a pretty famous professor at Kyoto University. He had this deal with the owner that he would make him lunch boxes and dinner for the professor (omelet wasn't on the bars menu), and he hanged around there every night. They've had that setting going for 8 years and the owner laughed that he was essentially the professors wife, and a bad influence for his workaholics habit!
There's a charm to those places, but they're best observed from the distance. The group of exchange student I was part of made a local bar close to the uni our hang out, because they had cheap beer and amazing food. But one day the owner politely told us they didn't want us to come back. That 10+ tall loud white people was ruining the third place this bar represented to the locals.
Funny thing many of the students protested "I don't understand. We're customers. We're paying and bringing many customers!" they tried to convince the students "to you it's consumption but to us it's a community place". Few of the students would accept that answer, but obliged. Oddly only the French did understand the sentiment. (and the Swiss were the most entitled)