http://www.theatlantic.com/politics/archive/2016/08/how-the-us-military-is-teaching-kids-to-shoot/494429/

"The activity has been criticized for promoting violence. “Combat-shooting competitions are built around fantasy scenarios, with humanoid ‘bad guy’ targets to be shot and similar ‘hostage’ targets to be avoided,” according to a report by the Violence Policy Center, a gun-control-advocacy group. The elaborate ‘courses of fire’ feature names such as ‘Carjacked by Gang Members,’ ‘Helicopter Raid,’ and ‘Save the Bank.’ Combat shooters typically begin them with a rapid draw from a holster, and are then timed as they run, crawl, and sometimes climb through the course, all while firing at human-scaled targets.”

Josh Sugarmann, the executive director of the Violence Policy Center, said his group is opposed to children participating in practical shooting because “experts say that children do not have the emotional maturity to know how and when to properly use firearms.”"

Liberal Democrat progressives do not have the emotional maturity to know how and when to properly use firearms.