My kit came in handy, when one of my sons stepped on a splinter and we had my truck. The kit when I bought my truck was empty I just bought a Johnson and Johnson kit to stuff inside it.
First thing I did was jack my kit up. Rubber gloves and a rescue breather are a must. Added a few triangle bandages, antiseptic ointment, waterless sanitizer, etc...
Lots of years as a backpacker and First Responder.