[tzs]

Are there any other EU countries that (1) a young Dane could reasonably obtain citizenship from, and that (2) do not require renouncing other citizenships? The idea is that a dual US/Danish citizen approaching the age where Denmark requires renouncing one or the other could obtain some other EU citizenship first, and let the Danish citizenship go. He'd still be able to live/work in Denmark as an EU citizen.

[_delirium]

I can't seem to find discussion of it being done, so perhaps there's some barrier I'm not aware of, but I believe Sweden should be a plausible route for that. A Dane who lives in Sweden for at least two years is eligible for Swedish citizenship under a special citizens-of-other-Nordic-countries fast track, and, since 2001, Sweden permits dual citizenship. In addition, since 2000, the Øresund Bridge makes it possible to live in Malmö, Sweden, while working in Copenhagen across the strait, so you don't even have to fully move to Sweden, just sleep there.

[woe]

Belgium, Finland, France, Ireland, Portugal, Sweden and the United Kingdom all permit naturalisation without requiring renunciation of previous nationality. This list is not exhaustive.