U didn't care living condition & cost, bro ... if ur family need money to buy a new house not with ur parents, if u need buy a new car, if u need send ur children into a good school & receive higher education ... u will find the life with 3x kids not happy as ur thought.
I saw most family in a big city with 2x kids, it's not a easy life for parents.
it means wealth is not evenly distributed in China. That is an issue that CPC may need to tackle in the future. In any western countries, having two kids is not too much burden on the family.