As I commented above, my 2-year-old eats natto with rice for breakfast every morning. ("Natto, the stinky slime-encased beans that kids ask for by name!®") Als

As I commented above, my 2-year-old eats natto with rice for breakfast every morning. ("Natto, the stinky slime-encased beans that kids ask for by name!®") Also, when I go to my Japanese wife's parents house, the whole family often has natto on top of rice as part of breakfast, often with chopped onions or thin sliced okra on it. And, I myself came to like natto after forcing it down a few times at breakfast to be polite to my host family the first time I visited Japan 25 years ago. So I'm pretty sure it is common to eat natto for breakfast in Japan. There are surely some people who hate it, though -- but lots of kids hate takoyaki, too.