Postmodern world offers to children and to teenagers a new environment. The couple is make casual, and the families often multi-recomposed. Care-taking and education of children and teenagers are profoundly modified with the estompage of the big structuring marks of the difference of genders and that of the generations, the shrinkage of authority in education. Some families have given up education of their child as preparation for the grown-up life. There is a loss of the complicity between parents and school. The invasion of cultural and family world by screens adds a deep novelty in the exchanges of the young person with its environment, in particular by the interactivity and the opening without limit to the virtual world and the absence of real parental control. The construction of the personality of the child as that of the teenager in its architecture as in the balance between the various classic instances are modified there. What are the effects of these changes during the transition to adulthood, on the process of subjectivation so essential for adolescent process? Does-it ensue from it one organisation modified by the personality?