I disagree with everything you wrote because the data says it's just not true. You have a fantasy that their is a problem but there is exactly no data to back it up. In fact the data shows just the opposite.
Our society is more and more embracing gun ownership, and more importantly the use of guns as a personal defense tool. Over the last 20 years we have gone from only a few states that allowed concealed carry to now all but one, IL, allowing concealed carry. There are now almost 40 "shall issue" states. When my Utah permit comes back I'll be able to carry in 37 states.
Training is available in more places and more forms than it has ever been before in the history of the country. Inexpensive
NRA courses are available in just about every town in the country. Hunter Safety classes are taught free once a month in every wildlife management district in PA, heavily attended by both sexes as soon as they are about to be eleven years old (there are between 50 and 100 people at each class - parents attend with their kids and get a refresher, it's a great system), they include a lot of gun safety, and PA isn't the only state that has them.
The higher number of parents with concealed carry licenses means there are more parents that are willing and able to teach their children the fundamentals of gun safety. Their love for their children will have them interested in making sure they manage their firearms properly.
The existance of forums like this one that spend a lot of time on what amounts to "Best Practices" discussion is educating those parents and that will be passed on.
Finally, Dr. John Lott, a respected research economist, author of More Guns Less Crime has addressed your question in depth and found that statistically there is exactly no difference in accidental deaths with guns between places that have all sorts of training requirements and place that don't have any, like Vermont.
We are doing just fine thankyouverymuch. What we absolutely don't need are any more government regulations to solve a problem that doesn't exist. Regulations that will get people killed because they were killed while saving up to pay for a gun safety class. Worry about something else, we got this one covered.
Fitch