Medical insurance alone would just about get you there. And since kids stay on parents insurance till 26 now...

And when I wrote the post, he had said only 1 of his sons made decent money (the one not married). And who knows what decent money means. Just because you make 20,000 a year as a student doesn't mean you would need to show $10000 plus in support. It is a factor of how much they live on and for most students, it isn't much.