The argument for the voting age to be raised to 25 years old.....

Young people reacting to Hillary losing the Presidential election to President Donald Trump

Not only does the medical science behind the brain's development and lack of decision making and long-term consequences come into play on needing a minimum age 25 voting age; but it explains the lousy 'journalism' splashed all over the internet being touted as real news.  I often find 'news' articles written in the same voice and style as if the author of the bit was writing on their own personal blog - which is fine on a blog - but not if it's being passed around as real news.

They weren't THINKING as much as they were FEELING.  Good judgement and awareness of long-term consequences don't come into play until around age 25 or so.

"It doesn’t matter how smart teens are or how well they scored on the SAT or ACT. Good judgment isn’t something they can excel in, at least not yet. 

The rational part of a teen’s brain isn’t fully developed and won’t be until age 25 or so. 

In fact, recent research has found that adult and teen brains work differently. Adults 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. Teens process information with the amygdala. This is the emotional part.

In teen’s brains, the connections between the emotional part of the brain and the decision-making center are still developing—and not necessarily at the same rate. That’s why when teens experience overwhelming emotional input, they can’t explain later what they were thinking. They weren’t thinking as much as they were feeling."

Source:  University of Rochester Medical Center