I would take it even further. Agree, there should be no additional welfare-type benefits for additional children beyond 2 or 3. But I also like the idea that tax rates go up dramatically, and dependant deductions vanish as the number of kids you have goes up. That way, the net effect could be both cost savings for the Government AND an incentive to not overpopulate, while at the same time still allowing personal freedom to choose. Nothing says that "choices" cannot also have associated costs with them.