Because they want to.
Because they want to escape from the real world and write something better.
Because it's a good way to let their imagination out.
Some of the most influential writers of fantasy books are C.S. Lewis, J. R. R. Tolkien, and H.P. Lovecraft. Other writers include George Orwell, Robert Jordan, and J.K. Rowling.
Writers write about what they like.
Yes, her books are classed as fantasy - adventure
fantasy and fiction
He's dead, so he isn't writing anymore. He DID write fantasy books.
She wanted to write a series of fantasy books.
Mostly adventurous fantasy fiction.
Here's a link to show you how writers think up ideas.
God directly wrote no books but He inspired all of the writers of the Bible.
I am not sure what you mean, but they wrote books. In the Renaissance books were published and people began to read.
You are never too old to write -- many writers started after they retired!
The author Diana Hacker writes books which offer a range of hits and tips for aspiring authors and writers. Her books include 'Rules for Writers' and 'A Writer's Reference with Exercises'.