Well it depends... Personally I think it depends. You can't decide to not have kids till the economy becomes better, what if the economy never becomes better? Or at least never becomes better during your time on earth, are you never going to have kids then? But at the same time, having kids, not just 1, 2, or 3, but over 5, 6 and so on, when you're not capable of taking care of all of them is bad. Why bring them all into the world only for them to suffer?  You should rather leave them where they were.

So, I'd say no matter how tough the economy is, a person can raise a child or 2. Even before getting married and having children, you should save for your children. No matter how little you earn, one should be able to put down a thing or two for their children in the future. And also, try not to give birth to many children.