There is a statist mindset running through this (and other) threads that only the government can set 'training standards' that 'allow you the privilege' of exercising a right. In no copy of the Constitution, Bill of Rights, or the Arizona State Constitution have I found any authorization for any such 'requirement' (all my copies can't have been bowdlerized) - in fact, when the Arizona Constitution was written, just prior to statehood, the legislature was strictly enjoined from regulating the ownership of firearms, or how they may be carried. For centuries, people were either taught as a matter of course by a relative or other responsible adult, or sought instruction on their own (or did without, and suffered the consequences).
By conceding that 'government' - at any level - has the authority to demand 'cut-and-paste' training before allowing you the 'privilege' - revocable at whim - to exercise one right, you are acquiescing to the fiction that they have that authority over every right. Try these on for size: Amendment I - you must complete a 40-hour course, with a passing grade of 90, before being allowed to attend the religious institution of your choice - and may only utter authorized prayers. You may only publish a broadside, a weblog, or a pamphlet after a one month course with a passing grade of 75, and no errors on the grammar and spelling sections. Get the idea? You may only reproduce upon completion of a 90 day course with a satisfactory grade, to be determined by the instructor.
Far-fetched? Perhaps, but once you allow the government to mandate standards before granting 'permission' to exercise a right, you have participated in setting precedent, ceding what should - and must - be a matter of personal accountability (and yes, I'm aware that I'm repeating myself) into yet another area illicitly controlled by people who view your exercise of any right as a threat to their power.