It makes more sense in the context of: > 移り箸 Utsuribashi (also known as 渡り箸 wataribashi) > To keep putting the chopsticks into the same side dishes. It is pr

It makes more sense in the context of: > 移り箸 Utsuribashi (also known as 渡り箸 wataribashi) > To keep putting the chopsticks into the same side dishes. It is proper etiquette to first eat rice, move on to eat from a side dish, eat rice again, and then eat from a different side dish. More about politeness to other guests in the context of a shared meal than being picky (and probably also with some similar logic to the TCM theories of how and what to eat, and maybe giving face to the host).