Stages of life
As a child you look up to your parents - their understanding of life gives you yours. Their views are your views.
As a teenager you grow an independence of thought. You see things your parents do not see and you wonder about them. With unfettered access to the whole wide world via the internet, your opportunities to think your own thoughts are unlimited.
When earning your living as an adult, entirely responsible for your own viability in the world with a job, friends, a lover, your understanding of yourself develops, perhaps through a broken heart or a joyful marriage. The birth of your first child probably causes the most profound change you can ever undergo? You have total responsibility for another life completely dependent on you.
At work, a promotion or change of job causes you to develop your skills, attitudes and sense of who you are. Managing others for the first time has almost as powerful an effect on how you understand yourself as having your first child. It is a new kind of responsibility for the lives of those you lead.
Other roles also change your perspective: Godparent, aunt or uncle, grandparent - even great-grandparent.