Not everyone defines themselves by what pays the bills, plenty of artists do menial jobs to make ends meet. How they pay their bills is a bad measure of who/what they are, you shouldn't reject someone's self definition because you want to judge them by how they make money. You are not your job.

>> You are not your job.

Very true. I hold the same liberal view as to what people truly are.

An interesting idea just struck me. If a seasoned software developer quits his full-time job to work on a startup of his dream, while taking a part time job at a bar to be able to pay his bills, who is he then? Is he no longer a professional software engineer? Is he now a bar tender? An entrepreneur? What is he truly then during this period?

By the same token, if say an economist has been getting frustrated at his job and starts learning web programming, building simple personal sites for himself and friends, is it insufficient to call him a programmer, even if we would all agree he is only a junior one?

Where do we draw a line?

If someone is serious about a new vocation and invests a lot of time and energy into mastering it, then by all rights he's already in part what he aspires to become.

This is a good point. The profusion of people who claim to be artists or writers, but aren't really, has really colored the perception of many people though (including myself). I was quick to mentally agree with the op comment before yours made me realize that there are probably many genuine artists who have not been "discovered" and thus have to find other means to pay the bills while continuing to create art.

William Carlos Williams and Wallace Stevens are good examples of brilliant authors who couldn't support themselves with their work alone. (In fact, economically, almost no poets can support themselves by book sales alone. They tend to go for grants or teaching gigs.) They were better artists than the vast majority of those who put out writing which can support them.

AFAIK, van Gogh was quite unsuccessful paying bills with his paintings, always borrowing money from his brother.