Understanding a culture is not a binary thing. Five years is enough time to understand a lot more than someone who has never set for in the country. Naturally,

Understanding a culture is not a binary thing. Five years is enough time to understand a lot more than someone who has never set for in the country. Naturally, there's other things that they still wouldn't understand after twenty years. Other companies are failing because they're making mistakes that someone who's been in the US less than a year could recognize. ("Don't use imagery of white and black people facing off to advertise that your product comes in white and black colors.")