why would there be customers? only customers will be of AI companies, you ask the AI and it will build the tool for you
Human power and social structures just don't work that way. No AI company is making my sandwich, operating the bus, or serving soup in the school cafeteria. Real estate, human service, specialized expertise, and have-power influence isn't going away.
Just because robots can do stuff doesn't mean the human power structures or service preferences evaporate.