It straps you to the seat so when the plane suddenly drops 50 feet due to turbulence your dumbass doesn’t launch into the ceiling.

Yeah, and this is a much more frequent thing than crashes. I’ve been on planes multiple times when there was sudden turbulence and people without seatbelts lifted out of their seats. I don’t think any of my personal experiences resulted in someone hitting their head, but that happens. There was just video of one earlier this year.

Exactly as you describe.

That scene in the pilot episode of Lost. That's why.

I thought of this www.youtube.com/watch?v=kH6QJzmLYtw

Are you ready for the terries to get froggy?

youtu.be/eiWIOKKuyGE?si=27PLlihXQlsugfdL