Abstract
The article is devoted to the study of the manifestation of personal characteristics of an older child in adulthood. The study “Manifestation of Personality Characteristics of an Older Child in Adulthood” is aimed at analyzing the influence of the experience of being older in a family on the formation of an individual’s personality in adulthood. The work focuses on the study of the relationship between parental upbringing, family relationships and the individual characteristics of the older child, manifested in his behavior, social relationships and professional growth in adulthood. The purpose of the study is to identify the characteristics of the psychological development of older children and their influence on the formation of personal qualities in the long term. The results may be useful for psychologists, educators, and family dynamics specialists seeking to more deeply understand the long-term effects of the role of the eldest child in the family context.