For those who say that they don't brush their teeth or urinate: in series, movies or books, we never see the characters defecate, for example. We know that they do it, just like bathing or the aforementioned, but it is not necessary to show every time that the characters take care of their personal hygiene because it would be boring.
@Deneuve In some instances, though, they deliberately exclude these actions to place an emphasis on a specific motif. For example, in a story where the plot is regarding to a zombie apocolypse, basic human necessities like personal hygiene (for elongated periods of time), grooming, and self-reflection are disregarded due to the fact that they have dubious things to worry about.
@Deneuve i agree mangas and books and stuff also NEVER show or tell/say when a girl is on their period. unless its their first. we still know that it happans we just don't need to 'know know' yk? we also dont see them taking a 5h**
