You fail to acknowledge that that although prohibition didn't work and was dropped they didn't make it a free for all, you have to be 21 to buy and drink alcohol in the USA but hey why not change that so a 12 yo can drink alcohol while carrying a gun around LOL
We have gun controls here, doesn't mean you can't have a gun but it restrict gun ownership to those who have a genuine need for one and not one bigger than what they need it for
