im curious how either of those links prove anything, the first seems like a smart rite of passage and the second is meaningless without context... you can generally find familial Sexual Abuse in any part of the world.
The second article is not just about that abuse exists. Article is about what happens to those who report abuse. Whether it is at least theoretically possible for them to escape abuse or not.
Second, how often abuse happens is different in different parts of world.