Since a few years, the sociologists who studied youth cultures are in desagreement. Some describe either a standardization, due to the mighty influence of the young people’s peers, or a dispersion through a widespread eclecticism. Others reassert the primordial strength of the family and school socializations and of the distinctive effects of the cultural tastes. The results of the present research demonstrate that the influences are created by the interactions of the familial situations, the school sociability and the friends network, ascertained by the social cohesion inside these groups. The quality of the family’s relations, the school career and the internal cohesion of the classes are important variables who explain the durability of the teenagers’s cultural tastes. Conformity and singularity become significant in the confrontation of these influences.