Edit - After dwelling on the subject even more I suppose the best option would be to limit coverage to two children. So they can keep reproducing if they want to but will only have the government supporting a maximum of two children. The lesson should be that the government (tax payers) aren't here to support as many children as possible when one doesn't have the means to support them on their own.
This actually sounds OK. Originally I was going to say no because I don't approve of such restricting policies but this sounds fine.