Why Japanese assume that people who appear non-Asian in Japan can't speak Japanese
One dot represents about 30,000 people. Geographic distribution is artificial. Dot representative population graph derived from 2016 data from the SBJ , MoJ , JTO & JEES Look at this dot map. What do you see? No, it is not a Rorschach Inkblot Test. This is a graphical representation of the amount of "visibly foreign" (people who most people would not consider to be of the phenotype / race "east Asian" skin / hair / eye color) people in Japan in 2016. Try spotting the red and yellow dots in the map (those who can speak Japanese). Those dots statistically represent the people-of-foreign-origin or nationality that can understand Japanese — although it does not represent where they actually live. Not many of them, right? (If you're wondering why the colors I chose are hard to see, especially the brightness between gray & black and the colorblind traits of blue & yellow: that was intentional as in real life, it is not easy to differentiate ...