This trend is not only in developed countries, in Mexico most of my family have 2-3 kids at the most and most of my siblings an average of 2, i have in fact two siblings with just a single kid each, the reason is higher the education and the living the standard lower re-productivity, in Mexico if you want a high standard of living 1-2 kids is the most you can have.
The same thing happens here in Cambodia. In fact, I can separate Cambodian people into two group (regarding the number of children they have). The high living standard urban people and the low living standard rural people. The first group mostly have 2 children and if they can get one boy and one girl then they will be happiest and cease re-productivity. The second group, who are low educated, usually have more children as they don't know how to prevent pregnancy. A common saying among "You are stupid that's why you have more children".
The cost of having children is getting higher and higher in Cambodia. Consider the following figure (in US$):
- An average white collar couple have $600 monthly income combined.
- Milk power cost around $18 per kg. A baby consume 5 kg per month costing $90
- A wet nurse (because the mother has to go to work) costs $80 per month (including meals)
- An average medical care for the baby costs $30 per month
- Other baby stuff and toys cost $30 per month
- School fee + book $15 per month (the cheapest private school available in Phnom Penh)
Total costs $245. That almost takes a parent's monthly income! The more children you have, the lower standard they will live. In order to let my baby lives better, I ride motor cycle instead of driving car.
