From psychological isolation to interpersonal trust: A process model of trust formation among non-help-seeking Japanese adolescents

Adolescent mental health crises are global priorities, yet many distressed youths become “non-help-seekers” who struggle to trust available gatekeepers. While literature identifies static elements of trust, the dynamic process of trust formation among psychologically isolated youth remains underexplored. In Japan, cultural norms emphasizing interpersonal harmony and avoiding burdening others heighten reluctance to rely on gatekeepers. This study elucidates this psychological transition process, focusing on situational and psychological triggers enabling hesitant youth to rely on peers and teachers. Semi-structured interviews were conducted with 34 Japanese youth (12 men, 22 women; M = 18.9 years) reporting past inability to trust others. Data were analyzed using the Trajectory Equifinality Model (TEM). The analysis identified a universal “Probing of Relationship” phase where adolescents cautiously evaluate potential trustees. Crucially, trust was catalyzed by perceived trust from others. Receiving deep self-disclosure from a peer fosters a sense of being trusted, mitigating self-stigma and facilitating subsequent self-disclosure. For teacher-student relationships, this process is reinforced by the teacher’s stable acceptance and persistent outreach, creating a psychologically receptive stage for guidance. These findings suggest shifting support models from teaching help-seeking skills to fostering environments where supporters proactively demonstrate trust and consistency, honoring the necessary “probing” period for vulnerable youth.