Parenting licenses are a justifiable way of transferring the burden of being a parent away from the taxpayer and to the parent. This could be done by firms and businesses selling licenses to responsible parents so as to not let irresponsible parents have children. To motivate the firms and businesses to only sell to responsible parents, the government could pass a law saying that any firm that has licensed a parent who is abusive, isn't able to pay for the child's education, healthcare, housing etc. must pay for the care of that child. This is sort of like an insurance scheme, and is justifiable as the parents should be more responsible for the child's care than the taxpayer, who really has nothing to do with the child.