Never did the pie irons, etc. My Mom was never a big one for specialized gadgets to make special food for the kids. We ate what everyone else ate.
I've read all the "recipes" for the irons and I can't say I feel like I missed anything.
With s'mores, I think if you didn't eat them as a kid, you will not care for them as an older adult. They aren't an acquired taste - it's almost the opposite. They are made to the taste preferences of little kids. If you start young, the emotional memories of them will override your older tastebuds (at least for one or two). But if you never ate them as a kid, then there are no emotional memories to override your tastebuds dislike of that pure sugar. It's like rock candy, cotton candy, pixie sticks, etc. - adult tastebuds just don't get the same enjoyment out of straight sugar (remember as a kid you could eat sugar cubes by the handful).
Now I do have an aunt who has been known to keep a jar of marshmallow fluff and a spoon hidden under her bed for late night snacktimes. I suspect she could still eat a small army's supply of s'mores.