There's no way you'd have the kind of time it takes to come up with such an awesome invention if you had kids. The constant interruptions, "Dad, Billy's looking at me, Dad, Jenny's touching my food, Dad, we broke your ping pong robot!" Then you'd have to mutter to yourself "I don't know why I even had kids" as you bend over to pick up the shattered pieces of your ping pong robot.
Oh the humanity! Now here's another reason not to have kids>>