That really would be the ultimate dream. If it was, I would go nomad.
But If I chose to live off my comic today, I would live off a cup of spare change the next day.
For now, it's a part-time venture. I try to run it as if it's a second business. My full-time job is in software development.
Since its unlikely that I'll ever be getting a "real job" (whatever the hell that means these days) because of my countries pathetic unemployment rate coupled with the fact that I live in a red state, yeah I guess I could say that webcomics (and being a youtuber, gotta have more than one source of income) is my quote unquote "job".