Why ?, because its the right thing to do .... Why Not? because it makes you the idiot of any given situation...
This simple analogy comes from birth, the way you are brought up, the way this leads to you dealing with things and how you approach a given situation (good or bad).
Its the fundamentals that our parents and their parents before them installed into each and every one of our blood lines.
If you try to fight against the way you were brought up (again good or bad, values or not) it can be compared to trying to saw wood against the grain .... it's a whole lot harder than it should be.