If a pilot repeatedly ignored their equipment and flew too low over populated areas, they'd lose their license in a hurry. When you pilot large, deadly equipment out in public, that comes with the burden of complying with all regulations, whether they feel necessary or not. If the general public thumbs their nose at this idea, that just underscores that it was a mistake to let pretty much anyone drive whatever they can afford however they want unless a cop is looking. We have to reverse that mistake instead of tinkering around the edges to occasionally slow people down by a tiny bit until they get used to handling even your traffic-calmed section of roadway at high speeds.