By Leah Walton

The Crash Test Dummies, Vince and Larry, made their big debut in 1986, telling America, “You could learn a lot from a dummy . . . buckle your safety belt.” Based on the following increase in seat belt use, this public service announcement campaign became legendary and impacted many, and saving lives as a result. The amazing work that these dummies did earned Vince and Larry a retirement spot at the Smithsonian’s National Museum of American History.

And yet, even today, not everyone buckles their seat belt, even though it has been proven over and over that a seat belt is the best lifesaving measure in the event of a crash. People still get citations during the highly advertised “Click It or Ticket” National Seat Belt Enforcement Mobilization campaign, which takes place over the Memorial Day holiday weekend. According to the National Highway Traffic Safety Administration (NHTSA ), the seat belt usage rate in 2015 was 90.1%—which is great, except that the remaining 10% equals 27.5 million Americans who are not buckling up. That means 27.5 MILLION people are choosing to be unprotected in their vehicle. Buckling up is such a simple action, it only takes about 2 seconds. So, when will it finally click for everyone to buckle their seat belt?

The National Safety Council predicts that 409 people may be killed on America’s roadways over the upcoming 2017 Memorial Day holiday period. I can’t predict every crash, but I can imagine that many of these potential deaths will occur because people chose to not buckle up. For them, it hasn’t clicked that seat belts save lives.

Other safe behaviors still haven’t clicked with many drivers, either. Driving while impaired by alcohol or other drugs, driving distracted, and driving while drowsy also contribute to the loss of life on our roadways. Simple solutions like driving sober or designating a sober driver, putting the phone away, and getting a full night’s rest would make the roads safer for everyone. When will all of this click for drivers?

Memorial Day is a time to reflect and honor those who have fallen for our country. And, however you choose to observe the day—at the beach, at a bar-b-que, alone or with friends—I hope it finally clicks and you make safe choices to get safely to and from your destination.

Leah Walton is a Safety Advocate in the NTSB Office of Safety Recommendations and Communications.