Edit: Not to mention if you are asking for their "legal name" for legal purposes then you would have to accommodate any valid legal name in any country.
Edit: Not to mention if you are asking for their "legal name" for legal purposes then you would have to accommodate any valid legal name in any country.
(For example, many Asian cultures with Chinese influence start their names with LASTNAME FIRSTNAME, so one might have a name of 蔡英文, where 蔡 is the surname, and 英文 is the given name. Japanese also has the same custom, 武 金城, where 武 is the surname, and 金城 is the given name.)
That’s why I think a harmonized approach—even if it has a bit of English hegemony—is acceptable, just as we have done so in scientific journals and publications.
For example, KANESHIRO, Takeshi, with the names of the authors of a paper.
[0] https://reader.elsevier.com/reader/sd/pii/S0022247X9895987X?...
(I'm aware that this was a stage name, but it is a legal name in the US)