You bad man! A culture where sexuality and the human body aren’t things of shame and you’re trying to teach it to them!
Well, Japan’s perverted. Yeah, people can take baths together and not freak out over it (I’ve had to learn that skill while I was here). But this is also a country where they had to institute “Women’s Only” train cars because the groping problem was getting out of hand. Where high school girls can sell their unwashed panties for quite a bit of money. Where the men have an unhealthy preference for younger girls. Where camera phones have to make a very loud, very audible, non-mutable sound when a picture is taken, because the first models didn’t do that and voyeur snapshots exploded all over the place. And one of my school nurses told me last week she gets quite a few students coming to her with sex problems. And these kids are in the 12-15 age range.
You can make of that what you will.