Nationality and national culture are not granular enough to explain behavior. There is no “Japanese mindset.”
I have traveled to more than twenty countries, and lived outside my native United States for almost my entire adult life. I speak Japanese and French fluently, and just enough Italian, German, and Mandarin Chinese to get myself into trouble. When I put my mind to it, I can even fake Spanish—and people understand me! I have worked with and known people from all over the world. Yet, I have never known any single person who could be described as typical of the country from which they come, because it is not nationality that really matters.
