Children's rights apply to everyone under the age of 18. This means that whenever the UN Convention on the Rights of the Child speaks of a "child", all minors are meant, while colloquial language and national law often distinguish between children, young people, minors and minors of legal age. However, children's rights apply to everyone under the age of 18.
However, the UN Convention on the Rights of the Child takes into account the individual age and maturity of a child when formulating children's rights. For example, Article 12 of the UN Convention on the Rights of the Child states: “States Parties shall ensure that the child who is capable of forming his own opinions has the right to freely express his opinions in all matters affecting the child and shall take the opinion of the child into account appropriate for the child and in accordance with his age and maturity.” South African national law is also often based on individual maturity or certain age thresholds: for medical treatment, for example, the consent of the child who is capable of discernment and judgement is required, or children from the age of five must be in custody proceedings be heard. 16-year-olds can also vote for political representatives. All of these are aspects of the children's right to participation, which applies to all children and young people under the age of 18 - but taking their age and maturity into account.