Growing without brothers can turn into an advantage!Until recently, it was believed that single children would be deprived of the various learning opportunities that siblings would provide, and that they would be spoiled, selfish, lonely and incompatible children. We often come across families who have decided to give birth to their second child in order to prevent their children from growing up as the only children with such characteristics. However, empirical studies over the last 25 years strongly reject negative prejudices about single children. The only differences that can be found between single children and children with siblings are that it is to the advantage of single children, contrary to the belief. According to this, it is seen that single children are not more behind than their siblings in developmental terms and they are more advantageous in terms of their success motivation and intelligence development than their siblings. In addition, contrary to popular belief, single children do not differ in terms of general adjustment and social skills compared to their siblings. Single children have no socializing problems!We see that families are often concerned about the socialization of their children who grow up without siblings. However, research shows that there is no difference in terms of the number of close friends or the quality of friendship with their peers, who are the only children of primary school age. In terms of socialization or play activities, there is no difference between single children and siblings. More importantly, this similarity in social skills persists in adulthood. However, although it may seem a luxury for these children not to compete with siblings or to have conflicts, the possibility of single children being deprived of their peers in terms of conflict resolution and conflict management skills may suggest families. At this point, it is useful to bring single children frequently together with children of their age group in order to give them this experience. Research shows that healthy parent-child relationships are the most important factor that contributes positively to the development of single children!It is seen that single children have similar characteristics in terms of social skills, character and harmony to younger children with two children, and these two groups are more advantageous than larger families with multiple siblings. While this emphasizes the importance of quality in the parent-child relationship, unlike families with many children, children in small families may have more one-on-one and quality time opportunities with their parents. As a matter of fact, it is a fact that one-to-one and quality time spent with parents will help the child develop intellectual capacity and develop more mature behavior patterns. Of course, these results do not deny the fact that sibling relationships have positive consequences on child development. However, it seems that the absence of siblings can be compensated by healthy and quality relationships with others, especially with parents. Even though families are getting smaller nowadays, parents should not worry about the social and intellectual development of their growing children without brothers and should pay attention to the special and quality ties they will establish with them rather than the number of their children.