Holy exaggerations!
It's not an either or with fast travel. You don't HAVE to use it every time. Goodness, and it has nothing to do with the so-called "ADHD" generation. For one, ADHD is a real medical condition and it's just plain wrong to use it as an insult to those that disagree with you.
Fast travel is more akin to the pre-set class choices, and saying that anyone that first started playing a TES game that doesn't research every little ability and stat must have ADHD if they just let the game pick for them.
Also, fast travel in no way shape or form "necessitates" the absence of other forms of travel. They could have both. I frequently traveled in Oblivion using my Unicorn companion that I found in the forest early on. I found that Unicorn by just wandering randomly, and I didn't even know it was the only one for many hours of game play.
It's one thing to have a difference in position, but keep it in perspective. You don't need to degenerate into a hyperbole filled elitist rant all because some people like something that you dislike.
Hopefully Skyrim will have the best of both worlds, a fast travel system that can be disabled if you so desire as well as alternate transportation methods.
I personally want a fast travel system that only works after I visit a place.