The proposed precautionary measures — phone bans, age-gated platforms, forced default-private accounts — are not in fact low-cost. They impose disproportionate burdens on low-income adolescents (for whom a smartphone is often the household's only persistent internet device) and on adolescent developmental autonomy more broadly. The "low side-effect" framing of the synthesis is therefore incorrect on its own terms.

The synthesis treats the proposed measures as if their only cost were "some lost teen smartphone utility," but the empirical distribution of smartphone reliance among adolescents is sharply skewed by household income. Pew's 2024 Teens, Social Media and Technology survey finds that teens from lower-income households are substantially more likely to be online "almost constantly" via a smartphone — because in many such households the smartphone is the only persistent internet device, used for homework, communication with caregivers, and access to public services. Blanket age-gating and forced default-private regimes hit that population hardest: they raise the friction cost of every legitimate use, not just the contested ones. Combine that with the developmental literature on adolescent autonomy — which treats the gradual extension of self-direction as itself a developmental need, not merely a preference — and the "low side-effect" framing collapses. The measures aren't free; they are paid for predominantly by the adolescents with the least slack to absorb the cost.

These are challenges this argument’s reasoning pattern must still withstand. Answering them on Isonomia strengthens the argument.

• Are the stated bad consequences likely to occur?Open
• Can the bad effects be mitigated so they are acceptable?Open
• Are there benefits that outweigh the bad effects?Open

No one has cited this argument yet.

No arguments cite this one yet — no one has built on or contested it. That is an absence of engagement, not a finding of soundness. Build on or contest it on Isonomia to change that.