Lots of Anime / Manga is state sponsored through the government's "Cool Japan" initiative, a very well funded undertaking to project soft power into the world through pop-cultural means. That's why a lot of the content is either putting Japanese culture on a pedestal, or showing the "outside world" as a dangerous, uncultured place. Exceptions apply of course - Japanese people have weird ideas about Paris, for example, which they think of as "almost as good as Japan". I guess by associating themselves with French culture, they think it will make them more cultured in turn. A funny side-effect of that is "Paris Syndrome" - a described ailment in Japanese medicine for the culture shock when Japanese people travel to Paris for the first time and see that there are Africans, or men with beards, or a candy wrapper next to a trash can. There are reports of Japanese women fainting on the streets of Paris by the truck load.

That would make it even stranger given some of the dubious material in those anime. Gate is basically A JSDF ad, but still has a loli vampire in it..