And people will keep finding ways of financing their love (playing music). In fact, I don't know many of my favorite musicians today who make a living from their music. They all work day jobs.
I think this new cultural line of thought of "in this day and age with the tools we have why would you need a full day job support for ..." (replace ... with making music, running a blog, developing games, etc) is pure arrogant bullshit. Yes, you can have hobbies, and side projects, and some might excel at doing them for a while. But doing your craft as an actual full time job is the only way to reach, and maintain, your full potential.