Wear pants over top of the 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.
He used to wear antibacterial but now he wears normal underwear; sometimes boxers and sometimes briefs.
underwear and a gumshield.
Some but it is unusual
2%
Yes. The overwhelming majority of chinese girls wear granny panties.
Some girls like to wear no bra and underwear because they like the freedom of not feeling restricted in tight fitting undergarments.
A boy does not need to wear a girl's underwear if his crouch is getting big because the underwear is not designed for them.
Generally any color.
some girls do, some don't. it really depends on her