There's plenty of education on how to use them. In fact there's too much in the sense that the main problem is an American culture of violence and war.No, the mass shootings are much deeper than firearms. Much much deeper. It is related to socio-economics, mental health and lack of fire arm education in general in a population with more firearms than people.
This is the reason the assault rifles are so popular and most popular in black. Young American men get erections just touching them on their barrels and on other parts that make the guns feel uncomfortable.