I like the combination of Florence Kaia. But I do think its pitiful that some people have to change their original names when they travel somewhere. People should just learn how to pronounce them correctly. Its not like you're learning a new language.
I think Kayan is very pretty. You should keep it if you really want to. You could even go for Kayan Florence instead of Florence Kaia. But either way, I think you'll be somewhat happy.
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