In America, adult diapers are mainly for old people, but in Japan, young women have begun wearing diapers as a way to level the playing field with menfolk.
The logic goes that men are dirty, awful slobs and have much lower standards when it comes to domestic cleanliness and personal grooming. Therefore, women have decided to become gross via leaving dishes in the sink, not removing body hair and peeing their pants.
Rather than getting up to squat over the weird hole in the floor of a bathroom that passes as a commode in the Far East, (some) women in Japan have decided that they'd rather wear a diaper and let nature take its course.
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