OK i´ll word it another way, the more Civilians who carry a weapon some will probably use it ..simple maths
Given they are doing "courses" probably like Coach then i highly doubt they have any real experience to judge a given situation & to keep calm.
Without Guns, normal average law-abiding citizens (elderly, women etc) will become even more victims, since guns can protect them from the usually stronger, younger and crazier criminals, who without guns will use brute force, blades, knives, bats, axes etc
Rape , Murder and Assaultfest of Peace across the Land