the spirit of this clause is for reunion, so the minor child won't be forced to stay abroad away from their legally stayed parents in US.
If a child overstay a long time alone or their parents are also illegal aliens in US. You should hope that DREAM Act can be passed so the child can become legal in US.
If a child overstay a long time alone or their parents are also illegal aliens in US. You should hope that DREAM Act can be passed so the child can become legal in US.