Why do girls wear lingerie?

first of all how old are these girls, if they are elementary children, well its not right to ask only that that's there parents fault, but if your asking because you are in highschool and you see alot of female teenagers that wear tight cloths is because they think its cool, or fashionable in there eyes or there wearing because there following what there friends are wearing or maybe they feel more grown up or sometimes they just want attention from other boys which is not right because when your a teenager boy and is going thru puberty they think only one thing and they try to take advantage and that's not right.