請教大家： 我們家現在情況是，大人孩子都是美國綠卡，已經超過5年， 現在大人孩子可以一起申請公民還是大人先申請公民，完成所有程序再幫子女申請？
-You need to file N-400 independently. After you become a US citizen, then your minor child (less than 18) will automatically beocme a US citizen. Then, you can file N-600 for your minor child to get the US citizenship certificate or your child can apply for the US passport directly.
