Solve, why are tvb TV dramas basically immigrated to Canada in nine cases out of ten?

China people went to Canada to work as far back as 150 years ago, commonly known as "selling piglets". Most of them are Cantonese. At that time, many people took root in Canada, and they would send their relatives to Canada for reunion. Since then, during Chinese mainland War, Canada has become a refuge for China people. Canada has gradually formed a huge ethnic group of Chinese, mainly Cantonese Chinese. Up to now, many people in Hong Kong and Guangdong have relatives in Canada, and Canada's immigration policy is also relatively loose. Therefore, when it comes to immigration, Canada will become a paradise for China people.