I suppose I take a less dogmatic approach to the gun thing, more of a law of evolution approach maybe. I mean it is terrible when bad things happen, especially to the [actually] young kids who couldn't know any better, but I just don't see it as a "normal" thing that must be addressed though methods that will actually inhibit ownership for those who don't make stupid mistakes. For example, I feel that having a gun in the house is necessary for multiple reasons, that said I've always had a rule that those guns would be in a safe due to our kiddos. As such, I should not be /punished/ by additional hoops to jump through nor additional restrictions because /other/ people are not doing this common sense shit.
The /only/ way to deter the level of stupid seen in these examples (in most examples) would be a complete ban and removal of guns from everyone in the country - because in many of these cases the kids have a stolen gun, have found a gun in the park, or they are visiting a friend's who's parent/brother/aunt/grandmother/roommate happen to have a gun. AKA banning guns only from parents would not enough to prevent it from happening, one would have to eliminate guns /everywhere/ to truly "control" the issue (and that applies not only to children, but to murders, gangs, and everything else as well.)
That being the case, and frankly flat out not an option, our best option then is education - not only for the parents, but for the children as well. Yet, anti-gunners seem to think that gun safety education for children is bad for some reason - it makes zero sense to me. I personally reject the "fear" of "possibilities" in favor of hard knowledge. My children have been raised to give guns the respect they /must/ be given, and that with the working knowledge of gun operation and safety, will serve them /far/ better in life than any gun restriction law you might put down on the books.
If you /truly/ want to argue for protecting kids, then we need to engrain this shit in kids heads, and as it's clear some parents are stupid, it /should/ be taught in school. Not sure I'd give shooting lessons per say, as the side risk of that is you'll have gang banger morons who know how to aim, but at /least/ a demonstration of danger, basic safety knowledge, and how to unload it/ensure it's not loaded, how the safety works, how to store it, etc. Hell, throw a little fear in their lives and show them all the super scary gun facts, show them what it looks like (from both sides) to get shot, etc. Then at least we have a chance that the older brother will realize that dad's gun isn't stored right and the baby might get to it - maybe the kids can talk their idiot parents into doing the smart thing.