What are the main reasons for the forced autonomous existence in natural conditions.

The main reasons for the forced autonomous existence in natural conditions are:
1) natural emergencies (natural disasters), primarily earthquakes, floods, hurricanes, storms, tornadoes, forest and peat fires, volcanic eruptions, tsunamis, mudflows;
2) extreme situations in the environment, consisting in a sharp change in climatic and natural conditions (severe cooling, rainfall, blizzard, snowstorm, snowfall, severe frost, drought). Such situations should also include a loss of orientation on the ground and lagging behind the group on the route during a campaign or expedition; attack of predatory animals;
3) emergency situations far from settlements on air, sea, river, rail and road transport.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.