Hi, i think artist can be anybody, but not all of them can live from his art. So it depends by artist how many his want and how many is possible to do . All the time we choosing what to do, what the way to choose to go right. Art has no rules, everything depends on artist what a value his giving on his works.
Basic thing is to have a flow from making own art , if not, its only job for money, but not expression of life.