What they didn’t mention is that adding information to these
fields will almost certainly mess up the sorting of your
To understand why, you need to understand their intended function.
They are there to aid with the sorting of Japanese and Chinese
names. That’s why they don’t show up by default when using
English as the system language. (Oddly, they can’t even be added
if you’re using British English.)
Yeah, seems like a nice idea to use these fields to aid Siri, but it’s not what they’re there for.