Every company has to choose their target market. Sometimes niche markets are chosen for each line of products. Most marketing plans describe their target market something like: “African American Men and women, ages 10-32, with a HHI of $40-$60k living in suburban areas of major cities in the US.”
Wimpy, a popular burger shop in South Africa, chose to market their burgers to a very niche market that few companies ever reach out to. The sight impaired.