I see no reason that brain makeup would be any more a choice than eye color or height.
But even if it is, that just pushes the question back another stage. People make choices for reasons, based on their experience and predictions. Lucky to be someone who had the appropriate experiences and made appropriate predictions to choose drive and motivation. There should be no reason to doubt this unless you believe in some kind of external soul or intervening deity - a child who is hit every time they speak or move without being told to, will make different choices about "drive and motivation" as a child who is encouraged and praised when they do things of their own accord. It can't be otherwise, to suggest that people do things /without/ their environment affecting them at all is so absurd as to be instantly dismissible. The idea that infants might know what "drive and motivation" even are, without being taught, that everyone must learn that they are effective and valuable, independent of all experiences, doesn't stand up to any scrutiny whatsoever.
Put simply, if what you say was true, /everyone would choose that/.
But even if it is, that just pushes the question back another stage. People make choices for reasons, based on their experience and predictions. Lucky to be someone who had the appropriate experiences and made appropriate predictions to choose drive and motivation. There should be no reason to doubt this unless you believe in some kind of external soul or intervening deity - a child who is hit every time they speak or move without being told to, will make different choices about "drive and motivation" as a child who is encouraged and praised when they do things of their own accord. It can't be otherwise, to suggest that people do things /without/ their environment affecting them at all is so absurd as to be instantly dismissible. The idea that infants might know what "drive and motivation" even are, without being taught, that everyone must learn that they are effective and valuable, independent of all experiences, doesn't stand up to any scrutiny whatsoever.
Put simply, if what you say was true, /everyone would choose that/.