I'm for *properly implemented* safety features. Airbags as implemented in North America are not proper, because they are **REQUIRED** by Federal Motor Vehicle Safety Standard 208 to be designed and calibrated to "save" an UNbelted 50th-percentile-male size/weight dummy in a 30mph frontal barrier crash.
This calibration perforce makes US airbags significantly more likely to kill or inflict injury in less-severe crashes. Less-severe crashes are vastly more common than anything equivalent to a 30mph frontal barrier crash. This requirement means "saving" those too stupid to buckle their seatbelts *at the expense of* those smart enough to do so.
And yes, this is the legal requirement for all vehicles sold in the US and Canada. Even the "depowered" ones. Even the "multi-stage" ones. Even the "smart" ones. Despite all the "Airbags are a supplementary restraint" PR, the fact is the law *requires* them to be designed as primary restraints.
In other parts of the world (Europe, Australia, Japan) airbags are designed and calibrated truly as supplemental restraints. They won't save an unbelted 50th-percentile male, but they also won't kill or injure.
Since a 3-point (lap/shoulder) seatbelt does over 90 percent of the job of reducing morbidity and mortality in traffic crashes (across all occupants, across all crashes), the rest-of-world approach is right and the North American approach is wrong.