Ideally, most people would realize that beach wear is not appropriate for public flying, particularly those that do not look good in beach wear to begin with. Moreover, in a premium cabin or airline club.

But from the land of Housewives of Wherever, Snookie, The Bachelor, etc. its not going to happen. As long as they have proper hygiene and stay within the confinds of their seat I just take it as part of being thrown in with the human race.