Not envious. Those who say they are envious are mostly women who have older or younger brothers, resulting in a psychological imbalance as they do not enjoy the educational resources that their brethren do. One is the risk of losing a family. If the only child died, so that parents have no one to support, normal parents have children to raise, that as a child should not want to die in front of their parents after their parents fell into such a situation. So non sole is double or multiple insured.
The second is that today's educational resources are not as valuable as we all think, as far as I think most people are just normal college normal job, and when your parents are old, you have your siblings, you can take a hand, it's the equivalent of you take fewer days off work and pay at least half of alimony less. With the long life expectancy of the elderly nowadays, the money you save from an extra college is not really enough to pay alimony, not as good as having a sibling.
Three is the human relationship, the only child's closest relationship is of course the parents, if the parents are not good, then there is less of a carry their own people. But non-dependent is not the same ah, even if the parents are poor, but in case of which siblings get rich it, there is a sentence rough reason called "one man gets the road, the chicken and the man in the street," which is the meaning of the word, your friends developed may not be willing to pull you a hand, the siblings developed is sure to share a piece of the pie to you, even if no one is developed, but you want to borrow money than the only child to borrow easy it. The only child to borrow easy it.
Of course, 80, 90 after the only child always have a kind of inexplicable advantage, non-independent often easy to inferiority complex, which also led to the non-independent is with infinite yearning to see the only child family, and rarely think about the advantages of the points I mentioned above. I believe that in the West and in the near future, the number of children is proportional to the financial resources, and children will become a "consumer goods" like existence.