6 Is learning to start a fire with flint and steel or a fire-bow a must-have survival skill?
While visions of survivalists starting fires in the wilderness with flint and steel or using a bow and fire board are familiar, it is highly unlikely that you will have access to flint and steel or have the time and energy needed to start a fire with various primitive methods. Learning these methods can be fun and gratifying, but carrying magnesium fire starters, waterproof matches, or lighters at all time is far more valuable and effective. What you should practice is starting a fire from a spark from any source and building that into a sustainable fire.
A survivalist should be able to start and maintain a fire with just a few sparks, one match, or one small flame starting with a nest of fine dry grass, shredded paper, or other combustible materials. This you must practice and eventually master. You must blow the spark or first small flame into a small fire and then use that fire to ignite twigs. The twig fire consists of the slowly fed larger twigs, small branches, and eventually sustainable branches and logs. Piling on too much fuel too fast will smother the fire. Wet or damp fuel must be kept close so it can dry from the heat, but not used as fuel until it is thoroughly dry. The proper balance of fuel and airspace must be maintained to sustain combustion.