> The loss of privacy is real, and its a direct effect due to the common practice of taking your smartphone -with quality camera these days- with you everywhere.

Maybe this is just a local thing with my city's clothing-optional beach, but: there are seemingly strong social mores against using cameras (or even using a smartphone in a way that can be misconstrued as maybe taking a picture/video) on clothing-optional beaches.

As well, it's hard to carry around your camera or smartphone when you, yourself, are naked; and because of this, families on the beach where the family is naked, tend to move away from anyone who is wearing clothes. Weirdly enough, "clothed on a nude beach" = signal of being a pervert.