I am green card holder and received the notofic...

I am green card holder and received the notofication from NVC for the submission ofdocuments, support of affidavit and others for my two younger kidsaged 13, 14, My question is can they get the non immigrant visa or they are will be not called for interview due to the president order. I read on the web site that childrens of LPR are exampted from the order if thsy are less then 21 year of age, kindly confirm