"OK, I have to ask... as someone who has neither testicles nor penis... what the frig is the point of that thing?? It doesn't look either attractive or fuctional, or am I missing something?"
Well, guys might also ask "what's the point of women wearing bras?" Sometimes a guy's nuts are a bit on the larger, saggier side and they can be a bother. I know I can't sleep at night if I don't have my sack pulled out front so my balls aren't trapped between my legs.