Has anyone ever given you one and asked you to try it on. Then feel the fit of it on you. Seems to me, I recall a once upon a time where I've chatted with one or two men who actually have gone through that.
If mature people wanted to knit jockstraps in their retirement, I'd volunteer to try 'em...
Now with my cock pointed down for a change, now feeling the other side of my shaft against the pouch. It may be the more sensitive side of my cock, making me excited. Still would be uncomfortable to be pointed down for a long period