This argument is reaching, in my opinion. If you are willing to pay the tuition to send your kids to that school then you can do so. Obama's daughters would be under heavy Secret Service protection even if they attended the roughest inner-city school in Chicago or Detroit. And they should be. If I were in his place and had children they would have heavy security. They are in extreme danger at all times without it; not from some insane random murderer, but from al Quada, Hamas, and a thousand other groups who are our enemies. Like it or not, they aren't like the average kid.
And this is a drive-by.