Why do people of other cultures retain their traditions and beliefs?

Why do people of other cultures retain their traditions and beliefs?

Norine Dresser (Writer) gives expert video advice on: Why should I change my behavior in my own country?; How can I apologize properly if I offend someone of another culture?; How can I share my culture with others? and more...

While it seems that people retain their beliefs and customs, those customs and beliefs actually do change just like ours do. But if you're a person who comes to a new country, you want to hang on to what represents home, but meanwhile, home is changing all the time. There's a name for it: theory of marginal survivals. That you do it just like you did it in the old country but you don't even know that the old country has changed their ways. So while it seems that they're very conservative in maintaining their own traditions, eventually time and interaction with other people will erode and ease those traditions, creating a melting pot of traditions.