United State’s population affect society, psychology homework help

how will changes in the age distribution of the United State’s population affect society, specifically related to Lewin’s person-environment interaction equation? Similarly, how does this effect the housing plans of those in nursing homes, assisted living facilities, adult foster care, kinship/family care, and homelessness? As a mental health professional using EVIDENCE-BASED PRACTICES, how can we address the growing problem of the elderly homeless population?