The competence of those who wish to operate a car are subject to the licensure regulation by their state. Older drives are additionally subject to medical scrutiny, by a doctor whose privilege to practice medicine is, itself, regulated by that state. The point is, just to be able to operate something as mundane as a car, the person must submit to a hierarchy of independent scrutineers whose conduct is governed by a hierarchy of regulations and laws. And these control points exist for very obvious and sensible reasons.
But such reasonable #regulation of and independent #scrutiny of #competence is utterly absent, when it comes to #gun ownership and #WhiteHouse occupancy.