Colleagues said that the United States is all immigrants, so there is basically no cultural background. Few customs?

If we do research from a historical perspective, it is indeed so evaluated, but I personally think this view is a bit outdated. Nowadays, with the rapid development of American economy, material civilization will certainly bring spiritual civilization, so today's America is by no means without cultural background. It may be more rigorous to say that the cultural heritage is not as deep as the four ancient countries. As for customs, there will never be less. You know, the United States is a huge complex, and the customs and habits brought by so many races and nationalities are definitely indispensable. Learn to be your own. Although it is not original, it is also learned.