If business owners, taxi owners, and others who claim to be working for themselves need to depend on customers and customer satisfaction for profit, that is to be able to get money from them, are they really working for themselves?
Maybe the people who are actually working for themselves are those who do not need people or to satisfy any customer to make profit, example like the traders who do not need to lure customers to their shop, or taxi owner that need to follow instructions from their clients etc.
What could be the real definition of working for yourself?