on Just Publishing Advice:
For my British and Australian readers, yes, the title of this article could also read, mum and dad.
Despite the spelling difference, the punctuation rules defining when to capitalize the words are the same.
So when do you capitalize mom and dad, or mum and dad?
The answer is that when the word is a proper noun, you need to use a capital letter.
Chris The Story Reading Ape's Blog 
Reblogged this on Claire Plaisted – Author and commented:
This thought on Mum and Dad or mum and dad…is something I was puzzling over the other day. Thanks for the post.
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So helpful, Chris, thanks for sharing. I get so confused when to use a capital letter when referring to a relative. Now I know.
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Welcome, Hugh 👍😃
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