To understand the gaucho idea behind a churrascaria restaurant, you must first understand the gaucho way of life in the early 1800s.
When European immigrants settled in Argentina, Uruguay, and southern Brazil, cattle raising was the primary way of life. Gauchos (or cowboys) were the men who worked with the cattle. They had amazing horse-wrangling skills and a great appreciation for the land. They were nomads, following the cattle and the work.