Wow. That’s interesting... Is it still the same if you are born on “American Soil” (i.e. Military Hospital, etc...). I.E. What about the kids born in Germany to American Soldiers — do they have dual citizenship till 18 as well?
Gosh, the things you learn here on FR! What a blessing it is.
America doesn’t allow dual citizenship. Only outside Countries allow this. (Example Mexico)
It also may depend on the country you were born in.