Most teenagers are not interested in culture or traditions.
I think that teens are are no longer intertested in culture and traditions because they have new hobbies related to new technologies.

There are several reasons which support my opinion.First, each country has his own tradition and culture and  usually celebrate the festival. There  are also people who do not like the festival and the traditions and prefer to stay at home.
Another reason is that there are people who travel to other countries to celebrate traditions and cultures. However every time there are less people that they don't want to celebrate traditions. In the past, there were no technologies and novelties that we can find at the moment.
Also I agree that young people and adults today are interested in other aspects that also enrich them but possibly not in a traditional and cultural way as before.
To conclude there are things that happen to them every day and perhaps the traditional, ancient amb cultural bores them, and prefer to explore and know more current things. On the other hand, I do not go against the reason that traditions and culture, is the history of mankind and there fore remains important, although we must take care of our acts and traditions that we start as in the near future what we do, will end up being a tradition for the next generation.