system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Are men who get a sex change and become women able to retire earlier?

In the UK, at least up until recently, women and men retired at different ages. What would happen here?
gpt
That also raises the question of, in the US, do women who become men have to register for selective service? Do men who become women? What about conscription in other countries, or service in combat jobs reserved for men?

Can a man who becomes a woman then marry a man (in a jurisdiction where gay marriage is illegal)?