Just as a generation has been taught to ignore their cultural inheritance, so they can relearn how to value it and add to it.
I do wish I could share your optimism, but I have my doubts. From my own experience, in those cultures where there has been a rekindling of interest in the indiginous music and dance, the new too often seems to be a sanitised, drip-dry, wash'n'wear version of the authentic, much to the chagrin of the few genuine practitioners.
In that sense, the genuine will always be in a minority. The schoolkids may hoof it up with branles, twmpathau or whatever and not take the piss, but the majority of them will then go home and listen to rap/rock/garage or whatever is the current craze thrust at them by that focussed, globalised and pernicious marketing campaign. In the face of that, tradititional music and dance will remain very much a minority concern.
Nevertheless, I do take heart from the 'slow food' movement, which originated in Italy and has now spread across the globe - albeit in a rather middle-class, politeand, er, slow fashion.
Maybe it's time for a 'slow music' campaign.