It depends on what you are wearing. Like tight jeans, yes I assume that wouldn't be comfortable.
Why? Dont wear pants at all.
Wear pants over top of the underwear.
If male: you dont. If female: dont wear underwear
yes
Some teenage girls choose to wear thongs as underwear for comfort or to avoid visible panty lines. However, preferences for underwear styles vary among individuals, and not all teenage girls wear thongs.
Some people are more comfortable not wearing underwear.
underwear and a gumshield.
Some but it is unusual
2%
Yes. The overwhelming majority of chinese girls wear granny panties.
underwear
Some girls like to wear no bra and underwear because they like the freedom of not feeling restricted in tight fitting undergarments.