I have zero interest in balls, even my own but at the end of the day I can guarantee there's a big sizable amount of the population that likes things that are different.

they also serve no day to day or purpose really. they hold the stuff. missing one is conversational item at most, and the cancer word would cause instant 'apologetic' response. nobody will truly care, if they do..well bullet saved.

imo, it's no different then wearing glasses, or being bald, or missing a finger.