The United States is not a command economy, which is an economy in which the government controls all economic activity. In a command economy, the government decides what goods and services are produced, how much of each is produced, and who gets to consume them.
The United States is a mixed economy because it allows for both private and public ownership of businesses. This allows for more competition in the marketplace, which can lead to lower prices for consumers and higher quality goods and services. Additionally, the government can use its power to regulate the private sector to protect consumers and ensure that the economy operates in a fair and efficient manner.