Different men wear it differently. Oftentimes the jock/cup replace the underwear entirely. Otherwise the jock would typically go outside underwear, sliding shorts, etc.
A supporter or jock or jockstrap is put on like underwear, with the pouch covering your genitals.
He wears normal underwear, some may wear an athletic supporter.
I prefer underwear, but you can wear either.
Some women wear underwear under tights and some do not. Tights are made to be worn without underwear, but many people do still wear them.
Asian ladies can wear underwear under their dresses. Most Asan ladies do not wear underwear.
Some people do, but most people wear underwear.
Underwear is not necessary under leotards, and when it peeks out, it looks unproffessional.
I never wear underwear with shalwar. I used to wear shalwar, kameez and vest only. I wear underwear with my pants only.
No the ancient Egyptians i believe did not wear anything under there clothes. such as under wear or bras. Very good question .
Wear pants over top of the underwear.
Under your clothes
You wear your underwear.