Construction Fails: The Magical World of Stairs
There is only one explanation if the stairs lead to an area that cannot be entered. You are well aware of the subject at hand, right?
Yes, many of us have been deeply impacted by Harry Potter. For this reason, we believe it to be either a movable staircase or a one-way pass to Hogwarts. The only drawback is that, unlike in the Harry Potter series, you cannot run up with a trolley.