The Legislature has fallen victim again to a streak of libertarianism.

On Thursday, the House of Representatives killed a bill that would have made failing to wear a seat belt a primary offense for people older than 18. A bill to require all motorcyclists to wear a helmet also failed.

In both cases, legitimate public health and safety concerns were overwhelmed by a misguided idea that somehow requiring safety devices infringes upon freedom.

According to estimates from the state’s health bureau, 40 highway deaths a year could be prevented by wearing seat belts. In addition, the state has spent more than $17 million between 1995 and 2001 on accident victims injured because they weren’t wearing a seat belt, and many other costs, including hospitalization, aren’t included.

The numbers are similar for motorcycle helmets.

In 2004, 22 motorcyclists died in the state. According to federal highway safety statistics, helmets reduce the likelihood of death in an accident by 29 percent.

Ideally, motorists and bikers could be counted on to make the right decision about their personal safety. Unfortunately, too many of them don’t. Society is left to deal with the consequences of their poor decisions.

Helmets and seat belts are only minor inconveniences compared to permanent brain injury and death.

The Legislature, however, disagrees.