It depends on the type of club and what sex the person is. It is best if the person dressed their age and stay within their style.
yes she should wear a bra
You should wear your best outfit you have and get answer.
Should a 10 year old wear panty liners
Clothes
Briefs
she should wear clothez
Wear pajamas to sleep. Most people do.
I don't think a nine year old should wear one at all. There is no reason why they should wear one. They are to young and they need to let their body develop somewhat.
they should as long as they want to
Be a guy.
NONE
Oh god, no.