A child with developmental disabilities is a child who, due to certain challenges, requires additional support for growth and development in order to achieve the best possible developmental outcome and social inclusion. Parents play a crucial role in achieving the best developmental outcomes. Parents of children with developmental disabilities need support from both the system and the community to meet the demanding role of caring for their child. One of the institutions of family law is the institution of parental care, which prescribes the responsibilities, duties, and rights of parents with the aim of promoting the child's rights and well-being. The human rights model does not dispute the dependence of a child with disabilities on parental care, but emphasizes the inalienable dignity of the human being and their right to actively participate in community life. Numerous international and domestic legal sources support parents in fulfilling their parental care for a child with developmental disabilities. This paper provides a comprehensive overview of the rights and services available to parents and children with disabilities but highlights a key issue in their implementation. Although rights and services formally exist, parents often face challenges in the process of accessing them. The main issue, therefore, is not just the existence of these rights and services, but their availability and applicability in practice, which can significantly impact the quality of life for children with disabilities and their families. This paper is designed not only to provide an overview of existing knowledge about children with disabilities and their families but also to facilitate the understanding of how to access rights and services within the social welfare system, healthcare system, and education system.