Should parents be licensed?

Given the cost to society of parents shirking their obligations to their children, to entrust children to just anyone able to bear that child seems negligent. The state does, after all, forbid chronic drunk drivers from getting behind the wheel again. On the other hand, to give discretionary power to the state over such a personal matter seems very dangerous. Is there any middle ground that would better protect kids from abusive or neglectful parents and protect society from the growing scourge of poor parenting?