Restricting the age bracket of people that can purchase firearms is a good move that will have a huge impact on reducing it's misuse. Age restriction and background checks will reduce the rate at which people have been accessing firearms. This background check will ensure a person with a clean record can purchase a firearm. This recent school shooting could have been avoided if these policies were already in place. The kid couldn't make the age limit for purchasing the gun he used and he's record too would work against him purchasing it. But again there are lots of guns already in supply. And the move by Walmart might not hinder another shooting from happening. The police should just go ahead and get the guns from the people that don't make the requirements to possess them.