Literature Why does the professor clarify the concept of a "fairy"?

Literature
Narrator
Listen to part of a lecture in a literature class.
Professor
Now, we can’t really talk about fairy tales without first talking about folk tales . . . because there’s a strong connection between these two genres, these two types of stories. In fact, many fairy tales started out as folktales.
So, what’s a folk tale? How would you characterize them? Jeff?
Male student
Well, they’re old stories, traditional stories. They were passed down orally within cultures, from generation to generation, so they changed a lot over time; I mean, every storyteller, or maybe every town, might have had a slightly different version of the same folktale.
Professor
That’s right, there’s local difference, and that’s why we say folktales are communal.
By "communal," we mean they reflect the traits and the concerns of a particular community at a particular time. So essentially the same tale could be told in different communities, with certain aspects of the tale adapted to fit the specific community. Um, not the plot.. . the details of what happens in the story would remain constant; that was the thread that held the tale together. But all the other elements, like the location or characters, might be modified for each audience.
OK, so what about fairy tales? They also are found in most cultures, but how are they different from folktales? I guess the first question is what is a fairy tale? And don’t anyone say, "a story with a fairy in it." Because we all know that very few fairy tales actually have those tiny magical creatures in them. But what else can we say about them? Mary?
Female student
Well, they seem to be less realistic than folktales. Like they have something improbable happening—a frog turning into a prince, say. Oh, that’s another common element, royalty ... a prince or princess. And fairy tales all seem to take place in a location that’s nowhere and everywhere at the same time.
Professor
What’s the line, ah—how do all those stories start? "Once upon a time, in a faraway land ..." In the case of folk tales, each storyteller would specify a particular location and time, though the time and location would differ for different storytellers. With fairy tales, however, the location is generally unspecified, no matter who the storyteller is ... that "land faraway ..." We’ll come back to this point in a few minutes.
Male student
Um, I thought a fairy tale was just the written version of an oral folktale.
Professor
Well, not exactly, though that is how many fairy tales developed. For example, in the late eighteenth century, the Grimm brothers traveled throughout what’s now Germany recording local folk tales. These were eventually published—as fairy tales— but not before undergoing a process of evolution.
Now, a number of things happen when an oral tale gets written down. First, the language changes, it becomes more formal, more standard—some might say less colorful. It’s like the difference in your language depending on whether you’re talking to someone or writing them a letter.
Second, when an orally transmitted story is written down, an authoritative version, with a recognized author is created. The communal aspect gets lost; the tale no longer belongs to the community; it belongs to the world, so to speak. Because of this, elements like place and time can no longer be tailored to suit a particular audience, so they become less identifiable, more generalizable to any audience.
On the other hand, descriptions of characters and settings can be developed more completely. In folk tales, characters might be identified by a name, but you wouldn’t know anything more about them. But in fairy tales, people no longer have to remember plots—they’re written down, right? So more energy can be put into other elements of the story, like character and setting. So you get more details about the characters, and about where the action takes place, what people’s houses were like, whether they’re small cabins or grand palaces ... And it’s worth investing that energy because the story, now in book form, isn’t in danger of being lost, those details won’t be forgotten. If a folktale isn’t repeated by each generation, it may be lost for all time. But with a fairy tale, it’s always there in a book, waiting to be discovered again and again.
Another interesting difference involves the change in audience—who the stories are meant for. Contrary to what many people believe today, folktales were originally intended for adults, not for children. So why is it that fairy tales seem targeted toward children nowadays?