Here's a deal: In Japan, all young girls are school girls. In fact, they go to school 6 days a week and most students will have to attend bukatsu (particularly sports clubs) on Saturday and Sunday and wear either their uniforms or sports gear to school. It's almost to the point in some areas that seeing a student outside of a uniform is actually fairly rare. Furthermore, the girl is wearing a standard highschool shirt and tie and not even a seifuku which are the "sailor suits (sera fuku)" that seem to be fetishized (much like catholic school girl uniforms or cheerleader uniforms in the west). This too is fairly normal as most high schools wear standard blazer and dress clothes these days and no longer wear seifuku or the military style gakuran for boys.
So my point here is simple: This is an incredibly normal part of daily life in Japan. The "girl" in the picture looks incredibly normal and her attire is also incredibly normal. The only thing abnormal about this is someone going off on a rant about how the Japanese have a fixation on schoolgirls based off what I can only assume is an ill informed cultural interpretation based on consuming shitty anime. As someone who's both spent his entire life attending private schools as well as having lived in Japan, I don't bat an eye at this. I'd suggest that if for some reason you find this "creepy" or otherwise sexualized, then the problem might be you and your fetishes.
