yes. now a days in a year or two you will ask yourself the same question, so just do it.
Well they should be wearing panties
If a girl is wearing a bra and panties under her clothes, but will not wear a bikini when swimming, there is nothing inappropriate. If a girl wears a bra and panties as a bathing suit, it is inappropriate because a bikini actually is less revealing than underwear and is made to wear in public.
Bikini
cause your a guy and your horny
NO most of the girls don't wear panties to bed. I personally don't wear as many girls prefer to have free sleep and it really provide you a comfort to sleep with out panties OR Sometimes girls do wear panties to bed so their period doesn't get on their clothes,bed or them selves!
When i do this i usually wear spandex with bikini panties on or a off colored thong funny watching guys expressions
I thin lot of girls do not wear.
there are many reasons... some girls wear panties to feel sexy. sometimes they wear panties if they wear skimpy outfits because some panties are similar to short shorts. Also if your planning on having sex you should wear panties because your man will find it sexy. also some girls wear panties because they like how they fit and feel. and some wear panties to feel younger. they think if they dress sexy they will suddenly become sexy to everyone, when in reality your still a cougar. some wear panties when they wear short dresses/skirts so when they bend over you see there new panties. and if you wear cute panties when your drunk and throw up on your clothes you can just take them off and still be covered up. and the list goes on.
So no one sees their diaper, embarrasing panties, or otherwise.
Girls
Yes. The overwhelming majority of chinese girls wear granny panties.
Yes.