Professional t-shirt design would always be an in-demand service, given by the fact that people often opt for clothing with a variety of artworks on it depending on their tastes. It is true that there are tons of software applications that could allow you to create a layout yourself. However, there would always be more advantages when you allow a professional handle the work.
Primarily, you will no longer worry about the artwork’s compatibility with the t-shirt printing process you have chosen (e.g. silkscreen, heat press, sublimation printing). Also, you will have the advantage of making all your ideas a reality without countless failures. You will even have the freedom to obtain a professional t-shirt within your preferred scope in terms of color quantity or theme.