Jerry opined: "I don't really see flint and steel as a survival item
In a survival situation you should climb into your sleeping bag in your tent
It's probably going to be raining and windy where it is difficult to get a fire going period, and to get the fire going and gather wood to keep it going you'll get way more wet and cold than you'll ever get out of the fire
If you want a fire, use waterproof matches or butane lighter
I think fire is more for recreation"
I carry firesteel, matches and butane lighter. I use the lighter for everyday tasks. I would use the matches for emergency fire starting, then the firesteel. A firesteel is the most inert, stable, totally waterproof means of starting a fire. It is also the hardest to use, ergo the matches.
My survival preparedness is based on losing my gear. Stream crossings, bears and two-legged snakes would be the main scenarios for losing gear. For those who cook in their tents, add loss due to fire.
My fire kit is a small redundancy for hiking in cold wet conditions. It gives me the ability to purify water, cook food, get/stay warm, dry clothing and sleeping gear, and signal for help. I do hike solo most of the time.
I have a K&M match safe with a compass, and a key chain with firesteel, tinder in a spy capsule, a Leatherman Style CS scissor tool, whistle and a Fenix E01 flashlight. I carry these items on my person along with a small quality folding knife. It gives me the ability to provide shelter, maintain my core body temperature, and navigate.
In fact, I carry the key chain and pocket knife every day and they form the core of my disaster preparedness kit.