I make art because it is fun. You might say, "So do six-year-olds," and then I might say, "I know you are, but what am I?" And then we might both stick our tongues out--anyway you get the idea.
Or maybe making art is a bit of a compulsion, channeled into a healthier behavior than excessive hand-washing or collecting a giant ball of string. Or perhaps it is like an instinctual drive. Food. Sex. Art.
Anyway, luckily I became a sculptor, and not a drug addict or a career criminal.