lol I don't have anything against public nudity but I would think twice about talking to people who are into it or taking part in it, I'm just not into exhibitionism
Lol, talking with them probably isn't your concern there, unlikely to have a language in common with those folks.
Their culture has not yet had much use for clothing. I doubt it is considered exhibitionism to them, clothing just isn't something they have got around to yet in their hierarchy of needs.