In 1972 a federal court in Boston upheld a motorcycle helmet law with the argument that society picks the injured rider up off the highway and pays for the consequences. A footnote refused the broader claim of an interest in citizens' productivity, resting only on direct outlays. The episode weighs the savings figures and the philosophers' objection that the cost exists only because society chose to insure itself.
No study quantifies the share of motorcycle-injury care paid from public funds, and the $3 billion CDC figure is a societal total dominated by lost productivity. The reductio of refusing to pay is a device rather than a proposal, and why no state requires adult bicycle helmets despite identical logic is unresolved.


