Why is it become so common for girls to wear shorts under their skirts and dresses now?

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I am asking about wearing actual separate shorts under skirts and dresses like Nike Pro shorts or other spandex shorts and not shorts already built in like in skorts.
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What's Your Opinion? Sign Up Now!I never had problems with someone trying to upskirt me so no mostly so that i dont expose myself
Do other girls wear shorts under their skirts and dresses to stop perverts trying to look up?
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