It would be cool, however improbable, if there was a training incentive (beyond the obvious advantage of being more safe and competent with a firearm). I am thinking like if maybe some retailers would offer a small discount or something to that effect to somebody who has attended some accredited training course, who would sponsor or fund such a thing I dont know, just a thought to promote safer gun practices. Idk, I was gonna say whoever provides funding for the free cable locks and lock boxes, etc...
It's possible such a thing would be good optics for the 2A community at large, to see that gun people were proactively taking it upon themselves to promote and possibly fund safer communities, etc...
But mandatory training, no that's garbage.