Why are there different points of view on human origins?

Because there are no written sources of this period, and the world picture of the most ancient people is being reconstructed on the basis of archaeological excavations, which do not allow obtaining unambiguous answers to all questions.

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.