Edit to add: It is only better for the business and the economy short term, because ultimately it results in a lower birth rate and below replacement level fertility is the main problem we currently have for the near-future economy
Hell, think about how childless people must feel about this. Or the child tax credit. Nothing is "perfectly fair", but sometimes public policy is good enough.
Childless people basically get their cake and eat it too under the social welfare scheme of most western countries, getting the benefits of children without having to deal with much of the drawbacks.