(I know I'm not Doug but here are some thoughts-)

Car scenario is different than airplane scenario.

Airplane crash usually means that you are going to have what you can reach (if you can reach). Pinned in the seat/debris is not uncommon. (I had a flight instructor whose father was pinned in wreckage for 2 days before being found. She was advising me to drape my coat over the seatback rather than tossing it into the back of the plane.)

Having to wait hours for help is the best scenario.

There were experiences in WWII where the plane crashed, crew survived and scrambled out of the plane and had to watch as all their survival gear burned in the wreckage. "survival vests" were born from those experiences.