when does a person or family become American?

If you mean a United States citizen, either at birth (in the USA or abroad to at least one USA citizen parent), or when "naturalized" by having a certain period of legal residency, applying, passing an examination and taking an oath.

Would our economy be better or worse off if we went back to the type of economy the United States had in the late 19th Century?

What was president George WAShington's adivce on Froeing Policy?

When they are born in America.

It's quite obvious.
If they are not foreigners, at least.

To determine when a person or family becomes American, we need to consider citizenship. In the context of the United States, there are a few ways a person or family can become American citizens:

1. Birthright citizenship: If a person is born in the United States or its territories, they are automatically granted U.S. citizenship. Additionally, if a person is born abroad to at least one U.S. citizen parent, they may also acquire U.S. citizenship.

2. Naturalization: This process allows non-U.S. citizens to become U.S. citizens. It involves fulfilling certain eligibility requirements, such as having a period of legal residency in the United States, filing an application, passing a citizenship examination, and taking an oath of allegiance.

Regarding the economy, there isn't a simple answer as to whether the United States would be better or worse off if it reverted to the type of economy it had in the late 19th century. The late 19th century was characterized by significant industrialization, rapid growth, and a lassiez-faire economic approach. While this period brought forth many advancements, such as the expansion of railroads and increased industrial production, there were also numerous economic and social challenges, including income inequality, poor working conditions, and limited government regulations.

Evaluating the overall impact of reverting to this type of economy would require considering various factors, such as the potential effects on income distribution, worker rights and protections, and the role of government in regulating industries.

As for President George Washington, he delivered his Farewell Address in 1796, which provided advice and warnings on various aspects of governance, including foreign policy. In his address, Washington recommended a policy of neutrality and non-involvement in foreign conflicts, emphasizing the importance of maintaining peace and avoiding permanent alliances with other nations. He believed that the United States should focus on its own internal development and avoid entanglements in the international affairs of other countries. This sentiment became known as Washington's doctrine of "avoiding foreign entanglements."