Is there any information on any prevailing or official policy on people with dual citizenship, where the legal gender is different in the two countries? Is there any information available on what the policy is in different countries?
The reason I'm asking is that my wife is a Thai citizen, but will live in Sweden and eventually become a Swedish citizen. She was born male, but lives as a woman and has gone through gender reassignment surgery (at a certified clinic, with all paperwork in order). In Thailand it is not possible to change one's legal gender (ie in official records and documents, like passport), but it is possible to do that in Sweden.
If someone has information regarding the policy in these specific countries, that is of course very welcome. But I am also interested in general information about the policy in other countries. I have not found much online, and nothing of any official standpoint or law text.
And official policies aside, can you think of any strong arguments against doing this, ie having dual citizenship and different legal gender? In what situations could this become a problem? And is there anything one could do to mitigate some of these problems? One problem I can think of is when traveling, as this article focus on.