Sorry I'm late on this one. Just saw it today.
I would say, at the time there are more people owning piano per population as compared to now days( correct me if i am wrong).
I'm not sure about this. Pianos were a luxury in the older days, and therefore not in all homes. And if they had a piano, it was played. Today, I see a piano in almost everybody's house, mostly uprights, though. Sadly, many times the piano is just a piece of furniture to put family pictures on. Nobody in the home actually plays it.
But obviously, this is also a matter of demographics. I am fortunate to live in an upper-middle class area and people freely spend money on having nice things in their homes, including a piano. There's many piano teachers here and all of them have many students.
Which brings around the point that because their are so many piano students here, there are many piano recitals and they are attended by whole families, young and old. You hear everything from jazz to pop, but classical piano is still alive and well too.