You can sue any one for anything. It does not mean you are going to win. You guys are acting as if the old woman won the case.
I hope you are kidding.
The fact that the notion of bringing suit against a 4 year old was even conceived is ludicrous enough, let alone the supreme court allowing it.
At what point do we admit that there is something broken in the justice system?
My knee-jerk reaction would be "Where were the parents?"