The problem of today's world is that stupid and poor people are having kids, and educated wealthy people are not. It is a consequence of the welfare state, no welfare or aid should be given to these uneducated parasites.
Decision to having kids or not should not be taken from the perspective of the economy situation, because we basically have to depend on what we can afford to take and prefer to have when it comes to child birth, because I've seen people who can't even afford to manage a living despite that they only have a single child, while some were having many children and affording to live a desired standard of living, everyone goes for what they want at last.
Of course it should. The only reason why many children are suffering is because their parents didn't consider their or the wider economical perspective before having them. Most people in undeveloped places should have never had children, prove me wrong.