It is widely accepted that the parents who has only child has the opportunity to work outside the home. Nowadays, most parents work outside the home and cannot leave their children alone. Otherwise, the parents who has only child can work outside, they will have more time to do everything they want such socializing or shopping. So Single family has more advantages than the large family in this day. 
It is generally believed that the parents that have only child can reduces their cost. The large family have to face to the problem about the cost whether directly or indirectly. They have to pay for their food, cloths, education or cost of daily living for their children. The cost will increase if there are having more child. Thus, the only child, thereby reducing unnecessary costs. 
Most people know that siblings often quarreled and often have a comparison between the brothers together and make an inferiority complex when they are compared. In addition to this, the only child are feel free either. 
Children with siblings must deal with always, sometime bring about sibling conflicts. Children with siblings do not have to deal with siblings to fighting over the toy or like to tease. Children with siblings are often compared to siblings and the child’s feeling of being compared lead to inferiority complex. In addition, an only child does not have to deal with siblings, an only child also has freedom life from siblings.