We lived within the boundary of established rules from the minute we came to this world.
Apart from the most basic activities such as eating, sleeping and "getting it", any other social behavior and social relationship, be it one's parents and relatives, education, exam results, teachers and classmates, life in university, homo- or hetero-sexual relationship, job hunting, career-ladder-climbing, house-purchasing and marriage, or children-bearing, etc… all the way till one's time was up, everything was within a comparatively stable system of rules that had been accumulated, developed, and eventually established after hundreds or thousands of years.
Only under one condition would such system be broken—which was a revolution in resources and technology, pushing the entire human society forward. However, a new set of rules would be formed then by repeating the above-mentioned process.