The scope of this pledge in combination with the dollar amount would stretch so thin that it would have the net effect of giving every child in the world $20 and saying, here, go improve the quality of your life.

So, yeah, if he wants to open himself up to public scrutiny with a tastless "letter to my daughter that i'm actually making for the public because my daughter can't understand this for another 10 years", people are going to criticize.

But he has 45 billion freaking dollars, so I doubt he cares.