I wonder whether it is assumed that personal data has to come in a superset of Latin. I wonder if EU banks have to render your CJK name correctly, or a cyrilli

I wonder whether it is assumed that personal data has to come in a superset of Latin. I wonder if EU banks have to render your CJK name correctly, or a cyrillic one if their customer happens to be Bulgarian. And use that without falling back to some sort of transliteration.