The recitation from three Japanese schoolgirls giggling about boys is of course a caricature from a satirical operetta and exactly the cartoon it was meant to be, although girls giggling over boys will probably be relevant for as long as there are teenagers. In the late 20th / early 21st century we have literalized the metaphor with anime, in which even more two-dimensional Japanese schoolgirls cavort for our amusement. However, it is true that some of the anime’d maids also battle demons and chthonic elementals, braids and batted eyelids notwithstanding. So, there’s that.
In answer to kiplet, who asked via Twitter, “What significance do the lyrics of ‘Three Little Maids From School’ have for us in the second decade of the 21st century?”