Flexibility is the survival skill in modern life. There are lots of people who take rules and regulations as their bible. To them, life is as simple as ABC, as long as you follow the rules and regulations imposed on them.
People like this would be very unhappy most of the time, as the world is changing so rapidly. We see social structure changes, we see moral standard changes, we see relationships change often. If we stick to fix rules or regulations, our mind would be fixed. Then the outcome would be most undesirable. Isn't it?
