Most backpackers and touring cyclists will be equipped to survive, since typically one is out for two or more nights, essentially self-sufficient.

This cyclist was well equipped and able to render meaningful aid. He was able to summon other resources to complete the rescue. He gets an A+.

Probably most car operators do not bother their pretty little heads with stuff like the ten essentials, although it really makes sense when you are off of the pavement. In any vehicle, I like to be sure there is a shovel available, along with elementary hand tools - crescent wrenches and the like come in surprisingly handy. Water and snacks are often welcome.