> why is it legal in the US to ride a motorcycle without a crash helmet. This depends on the state: https://www.cdc.gov/transportationsafety/calculator/facts

> why is it legal in the US to ride a motorcycle without a crash helmet. This depends on the state: https://www.cdc.gov/transportationsafety/calculator/factsheet/mchelmet.html https://www.cdc.gov/transportationsafety/calculator/factshee... > As of 2021, 18 states and the District of Columbia had universal motorcycle helmet laws, 29 states had laws requiring helmets for certain riders, and three states did not have any motorcycle helmet laws.