Pardon me, but how am I gonna learn
if I don't ask you?
So, this athlete was running a race, during which his junk popped out and he had to finish the race with his hand over his crotch.
https://www.tmz.com/2022/08/05/italian-decathlete-penis-falls-out-mid-race/
There is a link to another athlete whose junk popped out during the NFL Combine, and he said that it was because he was wearing boxers and not tights.
Okay, so I don't wear boxers or tighty whites or anything like that. Plus, I got nothing down there that can flop out, anyway. So, how is it that a guy's junk can flop out like that, if he was wearing boxers? Flop out past the boxers, and his uniform, maybe out the bottom? Doesn't an athlete have enough experience to know if his stuff is going to show?
And, I always thought that guys wore athletic supporters which would have prevented this wardrobe malfunction. Can you run better without a supporter? And, if you were running, why didn't he just let it all hang out and run with his arms swinging, and fix it when the race was over? It got blurred out, anyway. He could have done that. He didn't win. He's the guy kind of in the middle lane of the track, in blue.
How would you instruct your son to overcome this problem? Make him wear something under his uniform, or let him take his chances? I once had to buy a supporter for my kid, but that was so he could wear a cup (hockey.) I was treated to a parade around the house with demonstrations of knocking on the cup (he was a little boy with happiness in his heart.) But, no one ever talked about anything falling out.
I know that tits can pop out depending on stuff, but girls know this. Girls are particular and have other issues. But, this is the first time I ever heard of this for a guy. I watch a lot of track, and have never seen a runner wearing tights.
I'm not making fun of this athlete, but it did make me smile. 
= new reply since forum marked as read
(depending on the "equipment" ) to avoid the discomfort from excess 'flopping' ? At a minimum, such would seem distracting, if not painful, depending. Then again, the elite athletes are a bit different in their practicality over performance. 