There might only be a difficulty sometimes, especially if we are still starting but we shouldn't budge by it, as it can only pass through. Whatever type of work it was, all must work for themselves which includes proper grooming for example, so that we are presentable and that makes our costumers or our bosses to be impressed with us. We don't know, what if they will promote us later on? Or as a customer they will keep on coming back for more and gave us some tips (money).
No matter how impressed your boss or manager is with you as an employee, it is still better to have something of your own where you are not working under someone else and following someone else's orders because that gives you more room to grow and expand yourself and your business whether you are selling a product or a service.
There is a reason why people with day jobs are fed up with it and want to start something of their own even if they are earning less money from it because money alone isn't the most important thing; mental calmness and satisfaction play a significant role in your professional career. If you are doing something that you love doing while not having to listen to someone else, you will see a lot of changes in your life in general apart from the professional side.
For me, I would instead do something that earns men $1,000 a month with mental peace than earn $2,000 with a job where I'm always stressed out.