Some groups in South America continued to live as nomads even after the development of agriculture because they preferred a lifestyle that was based on hunting and gathering over settled farming. They may have found the nomadic lifestyle to be more conducive to their cultural practices, traditions, and beliefs. Additionally, some groups may have found it easier or more sustainable to continue their nomadic ways rather than transitioning to a settled agricultural lifestyle. Some groups may have also faced challenges or barriers to adopting agriculture, such as unsuitable environmental conditions or limited knowledge and resources. Ultimately, the decision to continue living as nomads may have been a deliberate choice made by these groups based on their unique circumstances and preferences.
