Can work hours convenient to you. Gain space, utilities, and travel tax advantages. Eliminate long-term lease obligations. May integrate your work with your life and lifestyle. Avoid becoming an employer.
Employers live in a world of regulations, obligation, and often needless expense.
That cost goes on, whether or not they are actually needed all the time. Do everything yourself for awhile. You'll become familiar with processes and their problems and get a firm grasp of what a given job is actually worth. Be sure to check with a lawyer. Acting as a module of any already existing business may provide the same protection.