Disclaimer: Boredom levels on this post may be high(er) than usual. That said, read on.
Do we really make our own choices? Or are we initially conditioned to do stuff/ believe in things, and then later as we grow, convince ourselves that they were really our choices to begin with in the first place?
Take religion, for one. When you're young, you're taught to follow a particular religion, to pray and to learn prayers and rituals that the religion prescribes. Of course, it is only natural that the religion of choice would be the one that your parent(s) follow(s), and not any other say, just because they liked it, or were fascinated by its tenets. Or for that matter, you were. And so we learn.
It's not just about religion. Take food choices, or lifestyle choices otherwise. A person normally settles down to routinely eating what's specific to his/ her community/ region. You start to believe that that's just what you want adopt by way of a routine, because that's what you grew up with. And believe that you chose to yourself.
Of course, as we grow, we do make changes - some may choose to not follow the religion, others may change dietary preferences. And so it goes. But that's later. Initially, it's more about teaching/ learning/ absorbing/ accepting, and only then do choices, and decisions following those choices arise.