There's a practical problem about time and energy, and a more subtle problem of what it does to a writer's head, to continually analyze why they write, where it all comes from, where it's going to.
What is difficult is the promotion, balancing the public side of a writer's life with the writing. I think that's something a lot of writers are having to face. Writers have become much more public now.
When I got to 40 or so... I had the sense when I looked back over my life I would actually see a mess of decisions, a few of which I had thought about, some of which I had sort of stumbled on, and many that I had no control over whatsoever.
When you become a parent, or a teacher, you turn into a manager of this whole system. You become the person controlling the bubble of innocence around a child, regulating it.