You ever get someone that tells you that? I got an argument with someone that says art isn't a real job because there's no physical labour involved, and nobody should charge more than 10 dollars for a drawing. Needless to say many erupted at him, but I've heard this about almost every job that involves entertainment or the like.
All I hear from it is "Stop enjoying your work and have a miserable job like mine". I mean, what is a "real" job? I perform a service, people are willing to pay for it, I get paid. Is it not a real job because I enjoy doing it?