This thread documents how changes to Social Media and Youth Substance Use may affect other areas of Canadian civic life. Share your knowledge: What happens downstream when this topic changes? What industries, communities, services, or systems feel the impact? Guidelines: - Describe indirect or non-obvious connections - Explain the causal chain (A leads to B because...) - Real-world examples strengthen your contribution Comments are ranked by community votes. Well-supported causal relationships inform our simulation and planning tools.