Not just any schoolgirl, but a schoolgirl drawn in "Manga"[1] or "Anime"[2] style, AFAICS. Lots of people are Manga and/or Anime fans, and many of those perhaps to such an extent that they feel it's a major part of their identity, so they want to show it some way. And a lot of those Japanese comics and animated films just happen to have young people of both sexes as their protagonists, so of course there will be schoolgirls in them. And much of that is, as I've understood it, "perfectly ordinary" comics and animations, like any "Young Adult" literature in Western culture; no more (explicitly) sexualised than Harry Potter or Star Wars.
So not necessarily "creepy", in the sense of sexualising schoolgirls... But yeah, from what (little) I understand of Japanese popular culture, sexualising schoolgirls is a pretty big part of current more-or-less accepted Japanese social mores, which is reflected in Manga and Anime too; see the whole phenomenon of "Hentai".[3] And I suppose there's a whole lot of Manga and Anime that is just titillating -- not quite explicitly, but borderline sexualised.
I have no idea about the proportions between the categories: I read quite a lot of Marvel and DC comics (and, ahem, some porn -- but those were wildly different things back then) in my youth, but that's so long ago that it was before the rise of Japanese popular culture phenomena in the West, so I've never been into any of that stuff. For all I know, the "creepy" stuff could be a majority of it; or it could be just a comparatively tiny fringe phenomenon.
So, summing up: Not necessarily creepy, but certainly gives at least me vibes of "potentially rather creepy". But, in the absence of any proof to the contrary, I guess I'd go with the guidelines and assume the best.
Not just any schoolgirl, but a schoolgirl drawn in "Manga"[1] or "Anime"[2] style, AFAICS. Lots of people are Manga and/or Anime fans, and many of those perhaps to such an extent that they feel it's a major part of their identity, so they want to show it some way. And a lot of those Japanese comics and animated films just happen to have young people of both sexes as their protagonists, so of course there will be schoolgirls in them. And much of that is, as I've understood it, "perfectly ordinary" comics and animations, like any "Young Adult" literature in Western culture; no more (explicitly) sexualised than Harry Potter or Star Wars.
So not necessarily "creepy", in the sense of sexualising schoolgirls... But yeah, from what (little) I understand of Japanese popular culture, sexualising schoolgirls is a pretty big part of current more-or-less accepted Japanese social mores, which is reflected in Manga and Anime too; see the whole phenomenon of "Hentai".[3] And I suppose there's a whole lot of Manga and Anime that is just titillating -- not quite explicitly, but borderline sexualised.
I have no idea about the proportions between the categories: I read quite a lot of Marvel and DC comics (and, ahem, some porn -- but those were wildly different things back then) in my youth, but that's so long ago that it was before the rise of Japanese popular culture phenomena in the West, so I've never been into any of that stuff. For all I know, the "creepy" stuff could be a majority of it; or it could be just a comparatively tiny fringe phenomenon.
So, summing up: Not necessarily creepy, but certainly gives at least me vibes of "potentially rather creepy". But, in the absence of any proof to the contrary, I guess I'd go with the guidelines and assume the best.
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[1]: https://en.m.wikipedia.org/wiki/Manga
[2]: https://en.m.wikipedia.org/wiki/Anime#Genres
[3]: https://en.m.wikipedia.org/wiki/Hentai (NSFW![4])
[4]: Well, depending.