I walk perfectly fine. Just like a typical human being does.
But stagger my plain; create an imbalance; or invite interference - and I just might stumble. Even worse, I may get used to those items which obstruct my path.
It doesn't take much for us to adapt to such a new environment - especially if there are forces at play that we are so rarely exposed to.
It's these new types of conditions that make us stronger for we go beyond our comfort zones to expand our tolerance and boundaries of acceptance of them. After all, if you have no say, you must comply.
The next time you walk the obstructed path, you may wobble a bit - but if you focus harder, and keep your eye on the destination, you'll get there - and you'll be stronger for it.