There is really no way to avoid it. I crewed for the Formula One racer Endeavor, and our first year out, the plane was pristine,
and while we were talking to one of the fans, he bent over to admire the shine, and put a nice scratch in the wing with his dangling telephoto lens...
AARRGGHH! Smooth & shiny is not just for show.
We need the fans, and the good will of our neighbors, so best we can do is to try inform and educate.