Citizen participation among children and adolescents is key for the development of society. According to the Convention on the Rights of the Child, the legal and ethical recognition of public, education, and social policies for children is vital for ensuring an active and critical society. The aim of this research paper is to analyse the characteristics and challenges of citizen participation during childhood as an educational process. The methodology employed was a systematic review carried out using the WOS, SCOPUS, and ERIC databases, taking into account the PRISMAS 2020 protocol. The results show that the incorporation of a culture of participation in children and adolescents will guarantee the persistence of democratic systems, although there are still challenges to overcome. The conclusions suggest that it is crucial that educational institutions, families, and society as a whole commit to promoting the philosophy of citizen participation at an early age in formal and non-formal educational contexts.