In my SEA culture, we pretty much know about sex fairly early because we don’t consider it “dirty” (though it was drilled early on that extramarital sex is bad because the parents and baby will be treated as outcasts). The actual copulation act is not talked about until you’re around 12 y.o. or so, but it is generally known by children that married people go “sleep” with each other, have “fun” and then the wife gets pregnant.
In my SEA culture, we pretty much know about sex fairly early because we don’t consider it “dirty” (though it was drilled early on that extramarital sex is bad because the parents and baby will be treated as outcasts). The actual copulation act is not talked about until you’re around 12 y.o. or so, but it is generally known by children that married people go “sleep” with each other, have “fun” and then the wife gets pregnant.