Supporting a child is a concept of family law which occurs within the framework of parental care, so parents are the ones who are obliged to support their child, i.e., children pursuant to the principles of family solidarity. With the birth of a child a sense of emotional connection appears in parents, so it comes naturally to parents to take care of their children and encourage their development, physical as well as psychological through education and many extracurricular activities. Children are born dependent on parents and consequently they are connected to their parents from a young age. Parents are obliged to support their child in different ways, however when the legal concept of supporting is concerned, it is most often through providing financial security to a child. They support them indispensably while they are underage, but the obligation to support will also extend to adult children if they are in school or if they are unable to provide financial means for their life, whether it is due to a serious illness or for any other reason. Many times, due various life situations, parents withhold child support, so child is forced to take legal steps and trough judicial proceedings achieve child support. Through this paper differences in supporting underage and adult children with reference to other legal questions that arise in connection with different organisation of institute, accordingly whether it serves to protect a minor or an adult child.