Targeted risk‑based youth tech policy

Instead of blanket screen‑time limits or moral panics, public policy should prioritize identifying and supporting the minority of adolescents at measurable, elevated risk (e.g., preexisting mental‑health issues, problematic sleep disruption or concentrated high‑exposure tails). Interventions should be built on longitudinal and ecological‑momentary evidence (who, when, what platforms, which interactions) and not on aggregate hours‑per‑day thresholds alone. — Shifting policy from universal bans to evidence‑driven, targeted supports reduces overreach, focuses scarce resources on populations that show causal vulnerability, and avoids amplifying moral panic.