The paper presents thematic analyses relating to migration processes, situated between the Legacy of the Past and Challenges of the Future. The authors focus on a complex migration process referring to key factors that characterise it as well as dominant concepts in host societies: segregation and integration. The theoretical considerations undertaken in the text are primarily oriented towards presenting the diverse situation of Migrant Children and Youth “On the Move” as a category of the young generation affected by migration processes. The text is an attempt to reflect on the functioning of migrant backgrounds in the context of children’s and adolescents’ integration with the new place of residence. Particular attention was drawn to fragile areas generating distance, social exclusion and consequently hindering the process of integration.