That makes sense….
In 1975, Tippi Hedren was a Hollywood actress, and when she visited a Vietnamese refugee site in California, women living there were fascinated how immaculate her nails were. She sent her manicurists once a week to train them, and then she persuaded a beauty school to train them and help them to get licenses. They set up the very first Vietnamese-run beauty salon in the US, and seeing their success other Vietnamese followed suit, opening their own. It requires limited conversational English and that helped to fuel the growth of the industry, where some entrepreneurial Vietnamese immigrants started to franchise the business to spread it across the North America, and now even to Europe.