Nearly every flight they state that you should keep your seatbelt buckled at all times. If someone decides that they don't need to do that, it is because of their willful ignorance, sorry.

If they spent the time to describe all of the rare-yet-possible ways a person could die on an airliner, the thing would never leave the gate.

At some level, take their mandated-by-regulations word for it? -- these regs are written in blood, and they say to buckle your belt, not only when the sign is lighted, but also any time when seated at your seat.

Boeing has done a good job of reminding us of some non-turbulence reasons to buckle up. You might also get sucked out of an unsecured exit door plug on a 737. :) I haven't heard that one mentioned in a safety brief yet.

In the pilot circles I frequent, the joke about seatbelts is that it helps accident investigators more easily count the deceased among the wreckage. So there's some YOLO fuel for your next trip. This was a freak occurrence. It's sad and it sucks. The injuries to passengers were likely preventable -- less so the cabin crew. New word is that the fatality was a cardiac event -- no belt buckle helps anyone there.

People who follow all safety instructions endure fewer light injuries, severe injuries and fatalities. Pilots who joke about seatbelts are just an example of professionals being hilariously wrong (or sardonic) about a topic adjacent to their expertise. Or they were just joking about their usefullness in an uncontrolled crash landing, which is extremely rare.

In this case, a seat belt would have likely saved the person - heavily injuring yourself is quite traumatic (tautologically) which increases the risk of cardiac events. In any case, injuries due to turbulence are extremely common as far as injuries in airliners go.

I think maybe you come from an alternate universe. It’s been standard procedure for at least 3 decades to wear your seatbelt, even if loosely, all the time you’re on a plane, apart from when going to the loo or otherwise moving around.

I mean, I don’t really know how to say it without sounding like a git. This is simply what you do. What “everyone” does, for a loose definition of everyone. The “everyone” that wears seatbelts in a car, for example.

Genuine question: you know you should wear seatbelts if traveling in the rear seats of a car as well, yes ?

As mentioned elsewhere I have generally worn a seatbelt on planes for several years. And I think other people should.

And I religiously wear one in a car - just like any sane person.

I'm really sorry not to be the strawman that people in this thread seem to be craving.