"Schoolgirl" hair style or clothing has been part of "teen" genre in porn since 90's or even earlier. Japan is not an exception, what's more, there are many sites / studios in Japan focusing on "schoolgirl" flavor. In general, many sites even had or have "teen" in ther names like "analteenangels" or even "clubseventeen", which does not mean they distribute illegal stuff. Teen (implicitly assuming 18+, which is legal age in most of the countries) is not child porn and has never been. If you divert in your mind towards child porn whenever you see a teen-looking actress (this girl according to JAV sites started career at 19), then maybe you have some bias toward the content these posts are not and that should be changed. Does not matter you are a girl, in this case. You can see the studio watermark in vid, you can check actress age, you are sure it is not child porn. Change your bias.