I don't know if "independence" and "toughness" capture what the author wants to talk about. There are cultures built around machismo in which male children are coddled and doted on by their mothers, where it is normal to be a "momma's boy" at home and a swaggering macho in the street. It's also possible to believe in the ideals of equality and interdependence in society at large while having zero emotional intimacy in the home.
That said, it's interesting that Japan has language for talking about this aspect of relationships. To me, it suggests a higher degree of uniformity in attachment styles compared to the United States, where talking about these kinds of relationships feels like a new social development associated with a progressive mentality. I think that historically in the United States, actual behavior at home has been all over the map. Different kids in the same classroom, with the same skin color, accent, and social class, are raised with dramatically different family relationships, often without realizing it until they are much older.