This of course makes the assumption that the current environment is any good. Sometimes the current environment is quite bad and hostile to most people. If you

This of course makes the assumption that the current environment is any good. Sometimes the current environment is quite bad and hostile to most people. If you are in the artic circle, its probably more realistic to survive being given some warm clothing, than to strip down naked and march thousands of miles to the equator where the environment suits your (lack of) clothing. The latter is not generally what we do as humans, only when all other means of survival fail do we migrate. We have the ability to use technology to adapt to our environments, such as in making clothing, and even change the environments, like making a warm dwelling or lighting a fire. These are within our toolsets for survival so we should use them, versus moving to where we happen to find adaption without these abilities.