I've observed the same thing in the US—most of us don't have any cultural traditions, even family traditions.

The unfortunate thing, as I see it, is we can't just create culture, nor can we merely return to traditional practices.  Tradition that was not handed down can be artificially reinstated, but it loses something in the process.  New traditions can be created but often they don't stick.

I think we have to create occasions in which culture can arise, then hope it comes about naturally.