持绿卡小孩（16岁以下）在海外停留3年半后，回美国会有问题么？
-Yes, the green card is void. If there is any uncontrolled factor (such as serious illness) preventing the kid from returning to US on time, the kid can apply for SB-1 visa to activate the green card. Otherwise, the kid has lost the permanent resident status (i.e. the green card is void).
我知道成人超过一年肯定会有问题，那小孩呢？
-No difference from adults.
有没有类似经历的请帮忙回答一下，谢谢！
-Yes, the green card is void. If there is any uncontrolled factor (such as serious illness) preventing the kid from returning to US on time, the kid can apply for SB-1 visa to activate the green card. Otherwise, the kid has lost the permanent resident status (i.e. the green card is void).
我知道成人超过一年肯定会有问题，那小孩呢？
-No difference from adults.
有没有类似经历的请帮忙回答一下，谢谢！
