The Law on maintenance of adult children is a family law institute frequently adopted in the practice considering that the majority of the children of age still depends economically from parents, because of the fact that they decide to study or they are no table to find an employment after the education. The crisis inevitably reflects to the realization of the law on maintenance of adult children. On one side, the reason can be the parents' impossibility to maintain them longer, because of the loss of the job or because of the deterioration of their economic situation. On the other hand, it can derive from the child’s impossibility to find an employment after the education or from the irregularity in studying. Therefore, since the beginning of the crisis it can be observed a concrete and constant increase of the number of judgments, which deal with some aspects of the law on maintenance of adult children. After an overview of the legal frame, the main purpose of this paper is to point out the relevant legal question, which derives from the case law. Moreover, it will be offered a short overview of the legal solutions offered in the context of the law on maintenance of adult children by the Italian, French and German legal systems in order to make a comparison with the domestic law on maintenance. Finally, the purpose of the paper is to try to answer to the previous questions, in particular if the actual Croatian legal solutions are connectable with the social reality of the Country.