In Japanese culture there's often an 'official' layer of proper behavior that in some sense is a pretense and in reality people are much more free-wheeling, including in the adult sector where Japan is pretty big globally, which is likely understating it. The country is actually very sexually liberated.
The pernicious thing is that the US and Anglosphere work exactly the other way around, legally you can say anything but it's the people who chase you around the globe and you have Mumsnet and American soccer moms hound you across the ocean. Which is a moral tyranny any dictator is envious of. The US was the only Western country where Leon was censored, the actually made like a 20 minute shorter version for the US market. Censoring actual art, not just porn or slop, is foreign to anyone in continental Europe or Japan.