What kind of "media"?
They are not exposed to TV.
They don't read newspapers.
Boy isn't in kindergarten yet, neither was his sister at his age.
On the street ads, most of the time they see nude females on bikes driving through the river and a big bottle beside them. (never figured how they were related, maybe if you drink much of that, you'll start to see nude women driving through a river)
When we (parents) are watching Hollywood movies with massive battle screens, my wife is in "OMG what on earth are they doing it" mode. "Why are those guys on the ladder climbing, it's guaranteed death...". I never wondered about that. It should be, probably because someone at the kindergarten showed me pics of men slaughtering each other, explaining, that's the way to go. I don't recall that, but there must be something like that, cause even though volumes of hormones in our bodies are so different,we should still think the same, right?