For many business owners, what they sell and who they sell to, is kind of like how some of my friends got sent to learn the piano when they were young. Their mom saw that the other moms were sending their kids and so their mom sent them. Which school they got sent to learn the piano is usually determined by how close is the school to their house? Or how famous is the piano teacher (or in some cases school). I am pretty sure you have friends like these. Some of them grew up to like music or the piano. Majority just hated it silently till this day.
Business owners who sells certain products because it is selling well and sells to the same market reminds me of my piano playing friends and their moms.