Family reunification for unaccompanied refugee minors is one of the most debatable issues when it comes to deciding whether it should be viewed as a right or it can be justifiable for states to completely prevent it and rather provide it only as a privilege. The discussion in the legal sphere proved that the issue is still problematic in both international and European laws. In this thesis, I have analyzed this issue through assessing the three claims that were provided by the United Kingdom for its negative position on the case. Through the lens of the child’s best interests’ principle, the non-discrimination principle, and the global distributive justice theory, I argued for considering family reunification as a right rather than a privilege. Children should always be treated as children. It cannot be justifiable for states to completely prevent them from being reunited with their families for being refugees.