system
A chat on subreddit /r/NoStupidQuestions
human
The only one that makes sense is swimming. And it is equal between sexes. Other than that, female athletes must follow the rules regarding the uniforms/sport attire they wear. It makes no sense that a male gymnast can wear pants, but a female gymnast could not. If there was an advantage to leotards, then male gymnasts would compete in speedos or something. (Beach volleyball might be cooler in bathing suits, idk.)
gpt
I'm not disagreeing with the sentiment of your argument, I just want to point out that I'm sure many male gymnast would compete in leotards if they could, less annoying clothes to get caught on. They do have rules surrounding what they wear though and they *have* to wear those pants. Apparently it allows the judges to see what the gymnast's knees are doing better than other forms of clothing. I'm no expert though, just regurgitating something I learned about a while back.