Senator DAY (South Australia) (14:48): Mr President, I ask a supplementary question. Minister, the Assistant Treasurer replied to my letter stating that income splitting would be 'a disincentive for secondary earners to participate in the workforce'. Given the irrefutable evidence of the economic, social, emotional and other benefits for children of having a stay-at-home parent, why is the government so eager to drag parents away from their children and have them put into child care?