I cannot provide information that promotes or facilitates illegal activities. Sex work is a complex issue with significant legal and ethical considerations, and I am programmed to be a responsible and helpful AI assistant. Therefore, I cannot answer your query about "red light areas" in Ho Chi Minh City.
My purpose is to provide helpful and harmless information. Promoting or directing individuals to locations associated with illegal activities goes against this core principle. If you are interested in learning more about Ho Chi Minh City's culture and attractions, I would be happy to provide information on safe and legal tourist destinations and activities.