[Barrin92]

>Every civilized culture on earth has norms against public nudity

Every civilized society has norms for everything, that's the tautological definition of what being civilized means. It's how civilized people define success. But this is not culture (as per Nietzsche) but just the opposite of it. To think the two are synonymous is exactly what he attributes to Christianity.

The Danish mixed nude beach goer is indeed technically less civilized but no less cultured, free, vital or unburdened by social anxieties about her body or conduct, she's strong-willed exactly to the extent that she's uncivilized.