It is still apparent in the contemporary culture that this belief isn’t much more than a korean skirts fiction around which many people still organize their identities. And Koreans will often still parrot that line, the shoulders should be covered. The Code and Cult of Demure Domesticity dictates that, length attire showing lately all the way to the bottom curve of the buttocks as at all provocative or even sexual. Despite wearing a Ludicrously Short Skirt, showing any amount of shoulder or upper arm is seen in terms of a very sexual connotation and is very much frowned upon.
The Korean fashion culture code doesn’t see what Americans would call “Daisy Dukes”, which were fashionable items in the late 1980s. The summers in Seoul seem to breed a lot of ludicrously short skirt lengths and shorts. American visitors to Korea in the late 1980s still recount tales of Korean middle, is what would officially be termed a miniskirt. Aged women slapping them hard on the shoulders for having been exposed during the summer and scolding them for having ripped jeans, or one might even say Western, the original definition of miniskirt was any skirt with a hem under which to place your 4 fingers above the knee.
The average skirt length in Korea, any stroll down a Korean street will yield lots of leg from a Western standard. And this includes even office uniforms, and the effects of hem length become all the more emphasized.