I am very curious about the survey of onlies in South India. How many subjects? What ages? The percents are startling when compared with studies done in China, the US and other countries. A link to study?
Susan Newman, author of "Parentng an Only Child: The Joys & Challenges of Raising Your One & Only"

I am an only child. I can relate to just about everything that has been said above. I have always found it difficult to accept anything less than perfect which may cause people to think I am self absorbed, but I am not. I care about the welfare of others the same, and sometimes more than the welfare of myself, I just completely immerse myself in getting everything right I forget some of the little things along the way. As I am now in my thirties I feel more fulfilled as my family life is weighed perfectly in my opinion; three kids and a successful husband that keeps me feeling competitive and ambitious. I strive for equality and that pushes me to the limit at times when I meet others that I have to work with that do not wish equality or strive for excellence. My life has seemed to many as a white picket fence but to me I always have an internal hurricane in the works of how I can do better and what I can do to be better. I believe that a lot of this was because I was the only child, around adults only growing up, adult sense of humor, older friends etc... and a sense of needing to catch up to the "adults" in my life and now surpassing them. I am happy that I was an only child, but also feel that I may be a more relaxed person if I had not been. I would not raise an only child myself since I think it takes a certain aspect of life away that I will never get to experience unless through my husband and his family i.e. my sister and brother in-laws, but to each their own.

Agreed, this can be very good sharing for people in dilemma single child or two children. Children also don't come to know when they grew with two kids together.