The reaction to mass shootings,especially schools are: buy more guns ,buy more of the same gun used in case there's a ban, arm teachers, products like bullet proof backpacks.
Kinder eggs must be banned because they are dangerous, but you can buy a gun at Walmart.
Nothing will change because the people in power don't want to and the people underneath are too afraid and paranoid to. (Fear and paranoia fed and encouraged by the people in power).
It's a vicious circle and tbh that's why I don't react as emotionally when I hear about yet another school shooting. Nothing to do with playing video games and all to do with the fact that it's all pointless, glossed over and the only "action " taken being "thoughts and prayers " and blaming video games/horror movies/rock music.