a hallway

The station "Schottentor" is probably one of the busiest stations in Vienna. If you leave one of the trams and are planning to take the underground train U2 you will have to walk through a hallway. Same goes the other way around. Either way, you will walk through that hallway. Interestingly, no matter which direction people are going, they are always walking on the right side of the hallway. There is no "hallway-officer" or whatever organizing it. It happening by itself. I stood there for five minutes watching probably over 100 people passing through. Everyone avoided the invisible border and the discomfort of getting to close to the "wrong side". No one decided to cross the parting line, breaking through the storm of people going the other way and walking up the wall of that hallway. Next to the wall, you would have been walking all by yourself in that direction.

Since we are little children we are taught to walk on the right of the hallway, the staircase and escalator. Once we are taught that this is what we are supposed to do and how to act, we won't question the act anymore. I am wondering which indoctrination are else in our life which we aren't aware of or questioning. And what are they holding us back from