But lots of recent studies show that only children are often happy and successful.
Is it sad to be brought up as an only child, with no brothers and sisters to play with?
He was the only child of healthy non-consanguineous parents.
She was then brought up with extreme care by her patients as their only child.
Their ordinal positions in their families were only child and second child in a family with two children.
They are taking advantage of the new economic opportunities, and they want the best possible life for their only child.
The boy was the only child in the family throughout the course of this study.
Many of the younger migrants have been the only child of the parents, and have no siblings who stay with them.