I think all the programming done by a human starts early in the environment even before birth, and then by observation. As the baby grows up the basic nature is 'written' into the behavior which usually carries on for the rest of life. That's why some say that a child learns around 70-80% of basic behavior training in the first few years. As the child grows older other new things are learned but the bulk is already done and it is more the academic and knowledge aspects that get analyzed and added. Train up a child in the way he should go: and when he is old, he will not depart from it.
Each person is given the choice as a God given gift. Some aspects of modern science tries to break this truth down in pushing the idea that the genetic makeup of a person causes him to do certain crimes.(eg. This one teenager supposedly killed 22 children in a school in Connecticut, USA and there was some study done along these lines). The way these 'research' goes, soon there will be blaming on the genes for committing heinous assaults and crimes and ultimately to take away the teeth of the justice system. We already see that being used without DNA matter with the 'Human Rights' groups who never speak for the victims of terror attack, and go all out to support the rights of the criminal and try to exonerate him. One can foresee where this leads to when the so-called DNA influence comes into play. You can be sure it will be used to screw up the system in favor of certain elites.
We have choice; we are given the ability and capacity to change our original destiny or fate or whatever to make us go into the paths we choose to go. God gives us this freedom and when we don't utilize it or let others take it over, then it'll be our own choice of declining our freedom of choice.