^^
A working compromise between inelasticity and laxness can be reached.
@Kasz216: driving licenses are an established and accepted thing and dishonest examiners exist, but they are a minority. And I didn't write psychologists, but psychiatrists, that are doctors, and so are subject to one of the most stringent codes of conduct and to maybe the longer lasting course of study and qualifying period.
Edit: again, a few dishonest and/or inept doctors exist, but we don't stop curing ourselves for this. If we accept only ideal, perfect solutions, we won't ever do anything, as there's no hope to get them. If we accept a compromise, making harder to a madman to get guns, we can reduce the problem and still let honest and sane people defend themselves when really needed.
