People can be perfectly in touch with their culture/religion (which are often intertwined) even after they emigrate. It's been almost 11 years since my family moved from India to Canada, but we still pray almost every day, we still go to the temple and celebrate most major religious occasions, we still eat Indian food most days, we still consider ourselves just as much Indian and part of that culture as Canadian. Hell, my dad watches Indian news more than he watches Canadian news! My culture is part of who I am, and I'll raise any children I ever have to be part of that culture too.