How do the drivers of human seasonal movement often differ in rigidity from animal migration?

Answer

Human drivers blend natural rhythms with economic necessity and can be delayed by market conditions.

Animal migration is governed by internal physiological clocks responding primarily to light changes, whereas human seasonal movement drivers often involve economic necessity and can be accelerated or delayed based on market conditions or policy.

How do the drivers of human seasonal movement often differ in rigidity from animal migration?
animalseasonmigrationpatterndriver