A lot of people sit down and just try to write something for the sake of writing something and often hit the “writer’s block”. If a writer does this, then he or she has no purpose besides just wanting to write something. Is it better to just wait until you have a reason to write?
Writing is very seriously hard work. And in the end, after rewriting the manuscript ten times, cutting out your favourite parts—entire chapters—you might still have to put up with more than a hundred rejection slips before getting published.
Or if you circumvent rejections and invest in self-publishing there is no guarantee that you can persuade ten thousand people to buy a copy, let alone a million. In the mean time, you’ve got to eat and pay the rent.