Growing up in Scotland, kippers were a two or three times a week breakfast.
Last night I had a long (and long distance) telephone conversation with my mother (now 90) and, because of this topic, we got onto kippers and herring in general. She tells me she still has kippers two or three times a week for breakfast and also has un-smoked herring in oatmeal at least once a week.
When she's not having Arbroath smokies.