> The US doesn’t recognize dual citizenship.
US does recognize dual citizenship. You could be a dual citizen with almost any country up to the age of 18. After that things get murky. I personally know people who are over 40 and still maintain dual US/UK and US/Japan citizenship.
As far as I understand things, while you could not become a dual citizen (unless you are born that way), to lose one of your passports you have to voluntarily renounce that citizenship, it can not be taken away from you. Failing to renew a passport is considered equivalent to renouncing your citizenship.
So, if you conscientiously renew both your passports, you could maintain dual citizenship your entire life.
At least theoretically.
US does recognize dual citizenship. You could be a dual citizen with almost any country up to the age of 18. After that things get murky. I personally know people who are over 40 and still maintain dual US/UK and US/Japan citizenship.
As far as I understand things, while you could not become a dual citizen (unless you are born that way), to lose one of your passports you have to voluntarily renounce that citizenship, it can not be taken away from you. Failing to renew a passport is considered equivalent to renouncing your citizenship.
So, if you conscientiously renew both your passports, you could maintain dual citizenship your entire life.
At least theoretically.
It's a bit more complicated than that. The United States does not "recognize" dual citizenship. There is not a legal status of "dual citizen" in US law. US law simply acknowledges that dual citizenships exist. And that many Americans have a second or even third citizenship.
An American can acquire a second or third citizenship the following ways.
1. Birth in the United States to two foreign national parents.
2. Birth in the United States to one American and one foreign national parent.
3. Birth overseas, but with at least one American parent.
4. Naturalization as an American, but the country of birth refuses to acknowledge the renunciation of former citizenships in the US naturalization oath. (Being a US oath it cannot bind another country.) This would only be an issue if the new US citizen had to travel to their old country.
5. An American being naturalized as a foreign citizen but not explicitly renouncing their US citizenship. Naturalization alone is not legally a renunciation. You have to explicitly renounce it and stop acting as an American. If you continue to use a US passport, identify yourself as an American or otherwise act as an American then you are considered an American under US law.
Failing to renew a passport does not, in most cases, cause you to lose a citizenship. It definitely does not occur with a US citizenship. It may or may not occur with other countries.
I have friends with US/Canada and US France. Three of my own siblings have US/German.