They could make their own jewelry out of copper. Over time, people were able to learn how to process other metals, but then they could no longer be called primitive. About 4 thousand years BC, ancient people were able to master the processing of bronze, gold and silver. This was already the period of the emergence of ancient civilizations. Thus, gold, silver and bronze jewelry began to appear. After a certain period of time, people learned how to process iron, although it was not a non-ferrous metal, and therefore, it was not used for jewelry.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.