The welfare system in place encourage irresponsible behavior.
So, if you are depended on government on handout, then have as many kids as you can.
If you are paying everything on your own, then you need to have stable income and stable relationship before even thinking about having offspring.
No, if you want your kids to succeed in the future, you need to have a stable income. Stable relationship isn't required to have an offspring, really.
As for the government handouts, the welfare system is in place for the kids, not the adults. Would you rather have a few abusers of the system, or kids that are literally starving to death?