Tom , I agree about the probable abuse, and that's just wrong, but it will happen as you predict. But when a person repeatedly demonstrates failure to make the correct decisions as to their life responsibilities, like rampantly incurring more debt than they can handle, failure to pay bills, addictions, etc, to the point where they need a guardian, that's different than something they "might" do. I believe it is a valid indicator of what they usually do. They don't need to make those wrong decisions with firearms.
That said, people do get well, recover and regain control. Veterans should absolutely have a mechanism and help to not only regain their position as an independent member of society, but to get OFF the no gun list. My thoughts, anyway.
Mac.