In S E Asia they stick plastic sheeting over the paint on motor bikes. Sometimes clear, sometimes coloured or with a pattern. It protects the paint from being scratched.
I have had them stick this over the bar on the bikes I have had in S E Asia. The bar can get scratched from knocking it when you step over it.
If someone wanted to remove cables and accessories, you could have it over most of the frame. But it is normally not worth the effort.