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At the interface between the sociology of migration and a sociology of socializations mindful of individual trajectories and dispositions, this article examines the mobilities of children of sub-Saharan immigrants on return to their parents’ country of origin in early adulthood (aged 20 to 30). Based on a qualitative sociological survey, the article shows the impact of the family socializations and transmissions that structure this type of transnational practice. It then distinguishes three forms of this transnational mobility (vacations with friends, return to roots journey, business travel), explaining these variations in terms of the education and professional socializations of the individuals concerned. Finally, it underlines the socializing effects and biographical (re)constructions this mobility represents for the individuals interviewed.