Why do people forget that King Charles III is also the King of Canada?

Queen Elizabeth and now King Charles III is the King of the whole Commonwealth realm, which means he is King of 54 different countries, including the United Kingdom, Canada, Australia, New Zealand, Scotland, North Ireland, and much more.

He isn't only the King of England, so just because we aren't British, we still care about our King

Why do people forget that King Charles III is also the King of Canada?
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