> I'm very interested indeed to know how exactly you arrived at "everyone would need to carry an additional document"
This is in reaction to the proposition to not denote sex in ID documents at all as is proposed elsewhere in this discussion.
> First of all I guarantee that we are not from the same country nor do we share norms
You are assuming a lot here, both about where I am from as well as what my norms are. Don't do that, both because where we come from is of no concern but mostly because it makes it much more difficult to have an open discussion.
> Second of all, it's not the norm in Indonesia to (for example) recognise same-sex marriages, but I fail to see how this is an argument about those in such marriages owning documents that reflect their union (or making their own decisions about where they can take those documents to and what workarounds they might need where their validity is not recognised).
In which way is this related to my suggestion that it is not up to you or me to impose our standards on e.g. Indonesia? If the fictional couple in your example were to go to Indonesia they would be treated according to Indonesian norms no matter what their own ideas would be, just like they would be treated according to Swedish norms in Sweden, Indian norms in India and Russian norms in Russia.
> And finally I frankly do not understand what your point is with the police officer. What exactly happens to an unconscious woman in a street in Indonesia found by a police officer with an X in her passport as opposed to an F (or with no passport at all, which is by far the most likely option)?
If the woman with the X in her passport were to look somewhat like a man [1] she could end up in a holding cell with men. As to whether it is far more likely she would not be carrying a passport at all is doubtful given that she is travelling abroad and as such will be carrying one by necessity. In many places it is mandatory to carry ID, both foreign and domestic, at all times.
[1] https://news.ycombinator.com/item?id=27773590