Consider in comparison what would happen if a minstrel group were to suddenly strike up in the streets.

I think they'd draw a small crowd, mostly consisting of kids too young to know what the fuss was about, while most people passed by in embarrassed silence. We're English, after all.

Crow Sister's point is a good one. If you're dancing in a certain style because your dad did it before you and his dad before him, then you've got yourself a tradition of dance and you can quite justifiably object to being asked to muck about with it. If not, you're a revivalist just like the rest of us, and it's common sense - and common decency - to avoid anything that might put people off or make them feel excluded.