I attended 2 catholic schools(USA) that had required uniforms, and it was basically common sense for girls to wear shorts under the skirts. Nobody told us officially, but you see everyone else has shorts on, so you follow what everyone else is doing. Girls also had the option to wear pants, but most people chose the skirt instead and still wore athletic shorts underneath. Is this common in most places when you have a uniform? Cuz for example, I hear stories about perverts in Japan taking upskirt photos of high school girls' underwear, so is this a normal practice or not to wear shorts under uniform skirts?