How do people protect their cultural identity while adapting to their new environment?

Throughout human history, people have been migrating for many reasons: economic, social, political, environmental, or else. Unarguably, people who have moved to a new environment must learn to adapt to the changes, in order to survive. Meanwhile, it is essential that they protect their cultural identity as they strive to assimilate into a new culture. This is because cultural identity gives a person a sense of belonging and helps connect people. People from similar cultures are more likely to understand one other, so that they can better support one other in facing the challenges in the new environment and in living a better life. That’s why, in many immigrant cities, there are large neighborhoods where people from similar cultures reside in high concentration. To take San Francisco as an example, there is Chinatown, Japantown, Little Italy, and so forth.
While establishing a local community is a great way for people who have migrated to protect their cultural identity, some people may be relocated to a place far away from such communities and have to face the new environment independently. Under such circumstances, efforts to protect cultural identity would be seen within the family. I’ve met a couple who migrated from Hong Kong to a remote town in England, where they are the only Chinese family. They act like all other British neighbors outside the house: send their kids to the same local school, go to the same local church, talk to everyone in English, and go to pubs to watch football games; but inside the house, they speak Cantonese, cook Chinese food, celebrate Chinese New Year, and teach kids traditional Chinese values, such as respecting the elderly and saving for a rainy day. It is through many trivial matters in everyday life that their cultural identity is protected. Although they live in an environment where they seem so different, they have successfully mixed in without giving up their own cultures, because that’s what they’re comfortable with, what they’re proud of, and what they cherish.
In sum, when in a new environment, people would often protect their cultural identity by getting connected with others of similar cultural backgrounds in their neighborhood. If this is not feasible, they would at least practice their cultures within the family.