That's what it would be like if we sat naked on the same chair. Sick. I don't want my butt touching yours.
But apparently Nudists don't really mind sharing places where other naked butts have sat.
I'm not sure I would want to see people naked while I'm eating, and especially not while I'm flying.
Everyone has their own quirks, but being naked publicly is really not my thing. Kudos to those who don't mind, but as for me - I think I'll keep my clothes on when I leave my house.