Why New Novelists Are Kinda Old

In a lengthy post, John Scalzi answers a reader who wonders why so many new novelists are so old. A snippet:

Because you know what? Writing sixty to one hundred thousand words of fiction is not something most people cannonball through, even if they assure you, with the appropriate amount of false modesty, that they’re really better at long-form fiction. Maybe they are, but they still had a long walk to get there.  I’m better at long-form and it took me until I was 28 before I could do it. Meanwhile I’d been writing short for years up to that point, in the form of reviews and columns and humor pieces and (yes) occasional attempts at short fiction that I mostly abandoned after a page or two. Lots of people in their teens and early 20s start novels; rather fewer finish them.