I have often wondered whether the financial side of having children ever comes into the equation when having kids?
I remember when I was a kid I heard a phrase "Family Planning", now it's probably got nothing to do with being sensible and actually planning how many kids you have and how you will raise them, but seems like a good idea. They are a bit like a 25 year mortgage.
Story here:
http://www.bbc.co.uk/news/business-23726224