Rather than just insuring a house or a car, state officials can implement public works that reduce the risks of flooding, provide emergency relief during natural disasters to mitigate loss of life, and reduce instances of highway accidents / fatalities. Instead of simply outsourcing and privatizing the risk management aspect to an independent contractor, they can attack the problems of social risk holistically, then set policy prices to reflect the risk-adjusted negative externalities of cleaning up a mess created by risky individual behaviors.
Uhhh, that sounds like socialism
No better way to reduce car accidents than to kill 100 Zillion people.