If all the maids are boys, do you think the pronoun "her" was also a mistranslation, like with Doll? (Haven't finished the new chap yet, are the maids referred to as female regardless of gender?)
Translation issue or... possibly trans?
Since all the Collies seem to be male, it could be another questionable translation choice. In ch197, it's understood that the Collies (at least in that lesson) are male, and at least some of them have specifically been referred to as boys.
However, this kid is called Milly. Might be a feminine-sounding nickname for Maximillian or something. It could be a situation where Milly is biologically male but prefers feminine pronouns.
Honestly, if that's the case, Milly might actually have a higher aptitude for being a Collie than some of these others, like Daniel. Simply because Layla/Al has two completely different personalities. Like I said elsewhere, the orphanage isn't going to find a bunch of DID kids (or kids with two souls in one body or whatever the case is with Layla/Al), let alone for their blood types to match, which is the main determinant for their "aptitude". The orphanage gets kids with that same blood type and forces them into this gender role. Or some gender duality. Idk why none of the Collies are female. Maybe there used to be some, but they already fledged?
Then again, maybe not all of the Collies are in the same lesson at the same time? Or perhaps Finny and Snake just didn't notice that one was actually a girl? Who knows, just yet.
Yana-san is definitely enjoying bending gender roles right now. She has played with it before, like Madam Red being a doctor (rare back then), with our earl pretending to be a girl for Druitt's party, how Sebastian trains Sieglinde to be more lady-like but then she gets her hair cut short, pretty much everything about Nina Hopkins, and how Sebastian trains Baldo to do "women's work" and tells him much the same thing that Artie tells Daniel.
The way F. O. L. Orphanage trains these kids is beyond unorthodox, though. Boys learning to cook and sew is all fine and good. Forcing them to wear dresses while doing so? Not so fine and good. ETA: No one in the other classes seems to be upset about uniforms. That we know of.
And, even though Artie is referred to as a boy, I'm not entirely sure about that. 🤔 I'm half expecting to learn more about the Mastiffs and it turn out they are all forced to dress as boys, regardless of their sex and gender. Artie's hair style has got me baffled. Reminds me of Sascha's hair, which also has me questioning their sex and gender. Which is why I started using "they/them" for Sascha some time ago.
Maverique: an abinary allogender/aporagender identity; a gender that is not the absence of gender, or an apathy towards gender, but a present feeling of gender, completely independent from male, female, neutral, or anything derived from any of them.
Viramoric: a diamoric term for binaryn't (genderqueer/nonbinary) individuals who are exclusively or primarily attracted to men.