Answer: it can help you (if you observe well) 1) to get to know yourself better, 2) recognize relating patterns adquired from your own family, 3) leave infantile approach to relationships (we all have tendency to look for someone who will unconditionally satisfy our needs and our ego requirements) and learn to relate as adult (respecting, i.e. respect frontiers of the other and require respect, i.e. learn the other respect your boundaries), 4) leave childish, infantile dependency and become responsible for the kind of relationships we make.
Explanation: in our psyche there is always something what is called "kinship libido" that seduces us again and again to regress, to depend on parenting figures. That is why it is no easy to leave family of origin (leave not only physically but also psychologically).
Under the ocean is wet and in continents its dry
Well first off the founders, any amending documentation, and input by the civilian population. From there they can grow, fall, adapt, or die. In seemingly infinite ways the gov. or population can be changed.