Why is most of the growth in global population seen in developing countries

Most of the population rise is due to having children being an economic decision instead of the love of having a family because as you see in most developing countries they farm a lot more than developed countries so more children equals more farm hands that work for free instead of hiring people to work for them. plus as a developing country healthcare tends to improve giving children a  better chance of surviving the first year of their life

Awoman who refuses to obey the law and continues driving to work everyday.