I was very up front with my kids. I showed them my guns and made sure to show them that they are empty. And I told them that whenever they wanted to see them to tell me and I'd get one or two out and we'd look at them. This takes all the mystery out of it. Every time we look at one I emphasize verifying its empty and keeping it pointed in a safe direction.
She's asked me a couple of times lately to teach her "how to shoot a gun." However, all she "knew" about them is that "fire" and noise comes from them. So, after a brief couple of lines about the fact that something other than that does come out and can be deadly, I let her see a couple of tame YouTube videos of people shooting pumpkins so she could see the holes that are made. I made sure each of the two videos was short (less than one minute each), and that they lacked any "yahoo" element.
Then, she watched the NRA Eddie Eagle video on what to do when one comes across a gun. She enjoyed echoing the character's rhythmical chant of "Stop! Don't touch! Leave the area! Tell an adult!"
After that, not as a test, but as a practice exercise, I placed a non-functional replica handgun on the bed in our master bedroom, and told her to go there to see if the cat was in there. As she headed down the hall, I also told her to see if there was anything there that should not be.
Moments later, the call came: "Daddy! I found a gun!" Though she did not run out to tell me, she did not touch it at all, and made sure I came quickly to the scene. I told her she had done well, and rewarded her (with a sweet.)
I wanted to keep her first lesson brief, well within her attention span (and that of her interest, which she seemed to hold quite well.)
I reminded her that there will be more lessons, and that I will soon let her handle one and see how one actually works. I have to work that out, as there are no ranges here that host such young shooters. But there are always airguns to start out with..
Aside from actual live-fire, I'd be interested in some of the techniques for "first orientation lessons" you all have used for very young children.
Oh, incidentally, her mother called me just as we were about to start the videos. My daughter asked me to let her speak to her, and when I put mom on speaker, my daughter began shouting "Mama, I'm having my first lesson on shooting a gun!"
I'm still waiting to hear about that from her mom...
First off -- congrats on being a concerned and responsible parent! This is a very important question.
My principles on the matter are these:
1) Never, ever hide your guns or your shooting habits/hobbies/activities from your children. Always be completely open with them and answer any question and allow access any time they show interest -- no matter how young. Every time a kid wants to know something -- tell them. Every time they want to touch a gun, help them to do so (safely). Hiding things just screws up what should be a wonderful part of your relationship, and sets the stage for confusion, mistrust, and sneaking around as they get older.
2) Every opportunity to answer a question and help them to touch and explore your guns is a critical teaching moment to instill the four safety rules. Show them your own rigorous safety practices, teach them to follow the same, and GUN-proof your kids, rather than trying to KID-proof your guns.
3) Shooting can start as soon as the kid shows interest. My daughter and oldest son were both pulling triggers at age 3. I say "pulling triggers" as they were sitting in my lap, with my arms around them and my hands over theirs, controlling the firearms. But they wanted to, they were not scared (and certainly were not PUSHED into it), and making the guns go bang was always a reward for being able to recite a safety rule or two. FIND SAFETY GEAR THAT'S KID-SIZED! It is available, pretty easily these days, and must fit them well to do its job.
4) Everything is at the child's pace. No reason to rush or push them into shooting, or to make them continue at it for one second longer than their interest and enthusiasm holds out. Better to leave 'em wanting more than to tire them out, bore them, or (heaven forbid) make them frightened or hurt by the guns.
My two school-aged kids both started sitting in my lap, with my hands over theirs, shooting .22 pistols at 3 years. Then AKs. Now that my daughter is 8 she prefers my 629.
Every step has to be REQUESTED by the kid -- I won't push them an inch farther than they're comfortable going -- and they aren't shooting the guns on their own. At that age they aren't in control of anything but the trigger itself. Even in later years my teaching style is VERY physically close. Kids can't be completely in control and responsible for the safety issues. They need to learn them and understand them, but the adult has to be in absolute control of the weapon at all times. It just isn't fair to place a child in a position of responsibility for life and death events.