Why would anybody feel it's too much hassle to peel a banana, and thus be more inclined to buy a peeled one? I know people do feel that way about oranges, but...
That depends on the type of oranges....
Ah yes, I was using the German definition of "orange" here. Which happens to be biologically correct (An orange is a crossbreed between a wild mandarine and a pomelo. Tangerines and clementines and, well, all the mandarines you can actually buy are breeders' variants of wild mandarines but are not crossbred), but that doesn't change the fact it was just a case of sloppy translation from German.