If you can't give enough time and good guidance to your kids, they might take wrong path whether they grow up in Nepal, here or anywhere in the world.
I think this concern about where to raise our kids come to every parents once in a while. Although I have no kids I might think this once in a while for my would-be-kids. As for right now I think kids from 10-20 should be better growing up in Nepal . I am thinking of being here for maximum 10 years making my career and investing in the future , and going back to Nepal where I belong raising my family, using my expertise.
And by the way this is not my final decision, I might pop up here in sajha after 10 years and make another 10 years plan still being in USA ;-)