Mandatory training opens the door to take away the gun rights of most of us by back-door methods. All that the gun grabbers have to do is to get training requirements that are too expensive and inconvenient for the average person to meet. That is exactly what DC is doing right now.
Governments are about the acquisition, extention, and exercise of power by an elite, who will then use that power to rule a peasantry for fun and profit.
Sauron lives, and his orc minions are on the march.