A Recurring Capture Pattern in Social Safety Net Systems: Why systems converge toward post-incident response under problem-triggered activation

Social safety net systems tend to respond after problems occur, rather than connecting individuals to preventive support before risks escalate. This paper documents a Recurring Capture Pattern (RCP) observed insocial safety net systems, including welfare, education, healthcare, and child support institutions. Under the institutional condition of safety net systems whose activation conditions depend on the occurrence or formal recognition of problems, individually rational behavior systematically converges not toward early detection of risk signals and preventive institutional connection, but toward post-incident intervention and expansion of remedial support policies. As these behaviors accumulate, they alter the operational conditions of the system itself, resulting in institutional activation conditions and policy evaluation structures increasingly dependent on post-incident responses, and reinforcing the same behavioral convergence through a recursive institutional feedback loop. The pattern ultimately produces a social safety net structure structurally dependent on post-incident intervention, indicating a structural misalignment between institutional objectives and rational behavioral adaptation. This paper analytically describes the structural relationship between institutional design and rational behavioral adaptation. The document does not propose policy implementation, funding structures, benefit levels, normative policy evaluation, or institutional deployment strategies, but instead presents design principles and operational modules as analytical references for institutional design.