So you personally inspect your car for suitability, your food for safety, all amusement parks, buildings, tools, etc that you come into contact with? Yes, modern society would not be possible without outsourced responsibility.

>Negligence does not differ for actors.

Of course it does. Those with more knowledge and training are held to higher standards in specific contexts. That's why we have licensing and such. The question is how do guns fit into this context.

I'm a Harvard-trained lawyer with over 15 years of criminal litigation experience, including in homicide. I have a former client right now serving a sentence for involuntary manslaughter (he was originally charged with murder).

You don't need to listen to me. I have neither the ability nor the desire to force you to listen to me. But I promise you I know what I'm talking about.