I always carry a possible style bag with a modicum of kit, even for a stroll.
Shelter (reusable rain poncho)
Spare compass
Fire kit (matches in a water proof case, ferro rod, lighter, tinder)
Metal cup (presently a large SS Sierra type) with 2 cooking skewers 16" log
Water flask/canteen, purifying pills
Sturdy folding kife
A bit of food (love sardines) manual can opener P51
now for a preference: An reusable sportman blanket (with some critters roaming our bush, do not want to offer myself as a baked potato, need to exit fast)
But if I panic, loose focus, falsify my level of bushcraft, all the kit all the world is useless.
I also carry a personal kit on my body, compass, sheath knife, matches, snare wire, hard candy
Reminds me of a funny story that's kit related.
A few of us got together to plan a trip, as we were all blokes once the route and date were sorted the conversation went onto kit.
1 of my mates is a scout, ex special forces and fancies himself as a bit of a survival type guy.
He was outraged that i wasn't taking a knife with me and a fire starter.
So me being me i asked why i'd need one, he then started going on about emergencies and NEEDING to start a fire.
Explained to him that i'd been to the area we were going a few times before and as we were above the tree line unless he can set fire to rocks there really was nothing to burn.
So when we got there he ended up using our gas burners to cook with as there was absolutely nothing to burn except a few tufts of grass, so again me being me i ribbed him about it the rest of the trip as he had a small axe, 3 knives, and 2 different devices for starting the fire, not one was used the entire trip.
he ended up getting the hump and said that i'd rigged the route so as there would be nothing to burn.
So the next trip we went through a large wooded area, he took the same axe, knives and fire starters, but because it had been raining for a few weeks before our trip and every single second from leaving the car he could not get a fore going, not even enough to boil water on his wood burning stove.
Fair dues to the guy, he went at it for hours on end each night, he tried saving some tinder so it was that wet and humid it just wouldn't dry out enough.
So even in a heavily wooded area his stove, axe, knives and fire starters were 100% dead weight.
Bare in mind we had shelter, were well fed, warm and relaxed as well.
I know we have some talented folks on here when it comes to starting a fire, but i think for most of us, even on a good day it'd be a struggle to get a fire started on a wet day, throw in stress, cold, wet, fear and panic and i'd say only 1 in 4 of us could get one going.
The other thing is location.
You could have a chainsaw and flame thrower but what are you going to burn here?
And these were taken in the Lake District one of the most popular areas in the UK for outdoors enthusiasts.
Even if you were mobile enough or the weather was good enough to drop down from the tops (surely it'd be good enough to hike out as well then) there is still nothing to burn
I can understand the logic behind having a fire as a back up in a emergency, it's just in my experience it's a very risky strategy to have as a fall back, even if you have the skill, experience, knowledge, patience and tools to start a fire in what would be cold and wet weather (if it was dry and warm why would you need a fire?) then throw in stress, or even worse an injury and how are you going to collect the vast amount of fuel needed to fuel a fire for a night?
That's IF there is anything to burn in the area you are stranded in.
I tend to prefer to have everything with me, that way i don't HAVE to rely on searching or luck to survive a unexpected night out, be that fuel for a fire or a water source.
So for me i just throw a down jacket in my rucksack in winter, extra water in summer in adition to my FAK, whistle, torch etc.