In the last few pages of the work he writes this:
One of the peculiar developments in the past ten years or so has been the rise of the "Dungeons and Dragons" industry. These role-playing games are derived directly from epic fantasy. They owe everything to the original writers like Howard or Tolkien. Thousands of people -- mostly teenagers -- live out large parts of their lives questing for treasures, outwitting wizards and doing in dragons. I must admit that these games are too complex for me and, while they hold no attraction, I am fascinated by the elaborate pains people take in playing them. What is more, people are now frequently buying books because they are curious to discover the origins of their favorite game. [*] This industry has led to writers producing books which are essentially templates for role-playing games. It is a subject I'm not qualified to discuss and I am sure there must be a number of books which deal with the phenomenon itself. The kid you see in the street who appears to be the village idiot might well have a huge IQ. He also happens to "be" Gorijor the Thief, on a dangerous mission to the City of Slithering Salamanders. And that bulge in his pocket could well be a selection of toy models, each one of which is a character in a complicated drama being enacted across a district, sometimes an entire country! Together with the rise of the computer game, the fantasy-role-playing game is having an impact on children which is extremely hard to gauge. What was virtually a formless ambience in my eleven-year-old head is probably a highly codified and fully understood structure in the head of today's eleven-year-old. The impulses are the same, but there are now huge industries (like those which produce all kinds of movie "spin-offs") ready to tap into them, to exploit them commercially, to supply them with rules. (For once I find myself incapable of drawing a moral lesson from this!)
Commercial interests, of course, are always in the process of "taking away" from the people, formalizing and sanitizing something and selling it back to them, just as commercial interests successfully institutionalized so much rock music...
[*] That being the exact reason I'm reading these words from Moorcock right now, obviously.