父母剛開始辦理公民申請， 請問15歲子女入籍申請要在哪一步加入？ 還是要等父母拿到公民後才能辦理？
-The child does not need to anything. After the parent becomes the US citizen, the child will automatically become a US citizen. Then, the child can file N-600 to get the US citizenship certificate or apply for the US passport directly.
