Good point Matyasz. That is why we have so many 3rd generation children participating.
I think that it's sad that a lot of people don't teach their children their mother tongue. I think that later on those kids and their kids really miss out because of that. But than again it's great that those people later do some research about their roots.
Poland, just like almost the whole world, is now under the influence of globalization, so a lot of youngsters value higher 50 cent and American rap/hip hop culture over Warsaw Village Band and polish culture. It's a pity. Still, people don't like to be just like the rest of the world, so sooner or later there’s going to be a major come back to polish culture.