I graduated from high school in 1990. In my generation (and this is also true of generations before us), if we were told to do something by a person in a position of authority, we typically did it--often without question. If we were asked to do something, we did it, perhaps out of fear of the consequences otherwise.
Fast forward 30 years, and I have now been in a position of authority with students for nearly two and a half decades as a teacher, coach, guidance counselor, and principal. During this time, I have seen a shift in the student mindset as it pertains to authority.