The rational part of the Human brain isn’t fully developed and won’t be until age 25 or so. People with a fully developed brain think with the prefrontal cortex, the brain’s rational part. This is the part of the brain that responds to situations with good judgment and an awareness of long-term consequences. Until the brain is fully developed people process information with the amygdala. This is the emotional part.
The connections between the emotional part of the brain and the decision-making center develop at different rates and various degrees of development. Stimuli play an important role in the development of these connections.
We have politicians that arrive at a conclusion on a particular problem based mainly on feelings instead of sound rational judgment. We also have politicians that play on people that process most information with the amygdala.
That’s the big reason why Democrats would like to see the voting age lowered to age 16. These people are easily persuaded by playing on their emotions.
You can have an extremely intelligent person that makes some very dumb decisions.