Humans are lazy beings. We usually use things without figuring out how they should be used. On the purchase of a new VCR, how many people sit down and methodically read the whole book before turning it on? Infact, we often only turn to manuals when we actually get stuck!
Why Do We Wander Through Things?
We wander through things because we usually can't be bothered to waste time trying to learn how to use something properly. With our busy lives, who has the time? We are always in a hurry and don't care for how things work. As long as we can get something to work, we stick with that method.