CRC/C/15/Add.112 page 4 13. While taking note of the statistics on the situation of children contained in the supplementary report provided by the State party, in particular those developed for monitoring the National Plan of Action for Children (1995-2000), the Committee remains concerned about the lack of disaggregated data for all areas covered by the Convention. The Committee recommends that the State party continue reviewing and updating its data collection system, with a view to including all areas covered by the Convention. In addition, the Committee encourages the State party to use the information provided by its next population census (2000) as a basis for the development of disaggregated data on childrens rights. Such a system should include all children under 18 years of age, and specifically emphasize the situation of vulnerable groups of children, as a basis for assessing progress achieved in the realization of children’s rights and to help design policies for better implementation of the provisions of the Convention. In this regard, the Committee encourages the State party to seek technical assistance from, inter alia, UNICEF. 14. With regard to the provision of training for professionals working with and for children (see Committees recommendation, CRC/C/15/Add.13, para. 19), the Committee welcomes the efforts undertaken in this area, in particular by the National Commission of Human Rights (CNDH) and DIF. The Committee encourages the State party to continue implementing systematic education and training programmes on the provisions of the Convention for parliamentarians and all professional groups working for and with children, such as judges, lawyers, law enforcement officials, civil servants, municipal workers, personnel working in institutions and places of detention for children, teachers, health personnel, including psychologists, and social workers. Technical assistance from, inter alia, the Office of the High Commissioner for Human Rights and UNICEF could be requested in this regard. 15. In the light of its recommendation (CRC/C/15/Add.13, para.16), the Committee welcomes the measures undertaken by the State party in designing and implementing social policies and programmes for children. Nevertheless, the Committee remains concerned that, despite the State party’s measures in this area, poverty and social and regional inequalities are still affecting a large number of children and their families. The Committee reiterates its recommendation (CRC/C/15/Add.13, para. 16) that such measures should be undertaken to the maximum extent of ... available resources in the light of articles 2, 3 and 4 of the Convention. The Committee further recommends that the State Party give priority to ensuring that sufficient budgetary allocation is provided to social services for children and that particular attention is paid to the protection of children belonging to vulnerable and marginalized groups. D.2 Definition of the child 16. The Committee expresses its concern that the minimum legal ages for marriage of boys (16) and girls (14) in most of the states of the State party are too low and that these ages are different for boys and girls. This situation is contrary to the principles and provisions of the Convention and constitutes a form of gender-based discrimination which affects the enjoyment of all rights. The Committee recommends that the State party undertake legislative reform,