The USA gummint tried it on with alcohol too, and failed, and now ganja,...it won't work unless there's a consensus , where the people agree to a shared value.
Tightening up on gun carriage, storage, presentation, etc laws would see a lot of guns put away safely (not all, by a long shot), but out of sight, out of mind.
It'll take a couple of generations before US gun ownership is reduced dramatically, if at all IMO.
Merka's a big country, a bureaucrat's nightmare.