There is no good way to talk about this. The cost to the children is far worse than any monetary amount anyone could come up with. The only way to combat this at all is to find a way to charge the criminals for the cost, in most states there is restitution for other tabs that the state or federal government pick up for the actions of criminals, but in self defense there is not.
Not to mention the toll that this takes on the woman who was forced to shoot the dingle berry that decided to break into the house. And the other children who have not yet come to terms with the fact that their mother, who is a symbol of safety to them, had to commit a violent act. They do not yet understand that it was done to keep them safe, and this will likely scar them for life.
Again, I have to ask, what is the price of our safety?