Analyze the case study below to identify underlying assumptions and structural barriers in social work practice.
"A Congolese refugee mother in Winnipeg seeks support for her teenage son experiencing depression and school disengagement. The social worker initially recommends individual counseling based on standard cognitive-behavioral approaches. However, the mother explains that in her cultural context, healing requires involvement of extended kin, church leaders, and community elders. These networks, however, are not fully present in Canada due to displacement from the DRC conflict and migration fragmentation."