The Birth of the Modern*

And so it is that milleniums of human development have led to this: a man, or a woman, or in this case a preschooler, with a question borne out of her newfound capacity for rational decision-making and the desire to shape her own destiny...

"And what are you going to do if I don't?"

You can just imagine the context here. Something along the lines of "Anna, go clean up your toys..."
(and let's amend that to perceived capacity for rational decision-making)

* with 're-spek' to Paul Johnson