I think it is still possible but very difficult.
The prudent thing to do is to find a reliable source of income while pursuing our dreams.
It's all about money these days because you need money to survive. It has always been about money, better men/women are just able see that its the deeper happiness that money can provide which is important. For example i want to be able to send my children, when I have them, to good schools and take them on vacations. I need money for that.
You can delay your dreams if you have to, after all like miley cyrus said "it's the climb" hahaha I actually quoted her.
I don't see any sense in gambling what I now have for a pursuit of a dream that will most likely be short lived.
It's highly unlikely that our dreams are achievable in a span of a couple of years anyway.
If it's anything worth dreaming about then it should, in my opinion, take a lifetime to achieve. Or better yet it should be something that will outlive you and you should only seek to contribute to it.
This being the case, looking for a job that will sustain you or "commercializing" your art for a bit is acceptable because like everyone else you need the money. You need to eat while your pursuing your dream after all.
You can start thinking about acts of pure creativity when you have enough to sustain yourself for the duration of the endeavor, which most likely will be very expensive.