With the development of society, diverse family structures appear, among which we also find same-sex families. couples. The rights of these families and couples to parenthood are at the center of public and political discourse and are often accompanied by negative attitudes related to their parental competence and influence on child outcomes compared to heterosexual families. Such views are reflected in the legal regulation of same-sex families in some countries in the world and in Croatia. During the legal and social regulation of the regulation of these relationships, it is necessary to rely on the scientific method, through valid results and conclusions, to determine the developmental outcomes of children raised by same-sex parents on the basis of scientific research. This paper includes research that analyzed the correlation between parenting within same-sex and heterosexual families with psychosocial, gender and sexual development, as well as cognitive development and educational outcomes of children. Most of the results suggest that parents' sexual orientation is not a significant predictor of children's developmental outcomes. Children of same-sex parents do not differ significantly in terms of psychosocial and emotional well-being, sexual orientation, cognitive development, and educational progress compared to children of heterosexual parents (Manning et al., 2014). However, perceived homophobic stigma of children and parents is a significant source of stress for same-sex families and is associated with poorer health outcomes for children (eg Crouch et al., 2014)