If you want to scale and eventually sell your business, you need systems. Plain and simple. If you take yourself and all of your employees out of the equation, what would be left of your “business” once they leave?
Systems are your business and what make it sellable. They are also what make your business reliable and scalable. Employees can leave at any moment, and if they left nothing behind in terms of documented systems and took a wealth of operational knowledge with them, a large chunk of your business has vanished overnight.