Thanks to all three of you for your quick responses. I cannot but enjoy the fact that you all confirm my own belives concerning fantasy, and in doing so provides me with the 'proof that the theories are apliable (does that word exist in English?) in general' that my teacher wants me to give her. Thanks guys!
And I eagerly await more replies, and for once DON'T WORRY ABOUT REPEATING OTHERS! I will only be happy to recieve alike answers, thoug of course it'll be enough to tell me you agree with one of the existing posts

Can't wait to prove to my teacher I am right and she is wrong
And links to articles about teenagers and fantasy is still wanted... badly
Again, thanks for your help!