In any European Union Member State, unaccompanied migrant minors (UAMs) represent a complex subject that requires a multifaceted approach, encompassing factors such as the characteristics of migratory flows, reception policies, legal frameworks, and access to services. The status of UAMs is split between being a “minor” and therefore a direct recipient of international and national protection conventions, and being a “foreigner” and therefore subject to restrictions in rights and national policies. The emerging scenario in European countries is an increase in the number of arrivals of minors alone, instead of adults, but with the serious responsibility of having to support them economically. This paper originates from the Global Answer project, which aims to identify, analyze, and disseminate good practices in the field of social work, social services, and human mobility (migrants, refugees, or asylum seekers) in Spain, Italy, and Sweden.