Not 'stupidity'. 'Ignorance' is 'a lack of knowledge, understanding, or education', and easily fixable; 'stupid' is a whole 'nother thing.
This brought up by, a few days ago, a guy asking how to load a magazine(actually something like "How do you put the bullets in?").
"Take a cartridge, and-"
Hold up a round. "Cartridge?" Blank look. "The bullets?"
Genius I'm not, all-knowing I'm not; the level of "I have no idea what any of this stuff is, how do you make it go bang?" is amazing. That's the bad part.
The good part: They're learning. They've decided to find out, and try this. And the more people who do, and find out how much fun it is, the better off we are, and the better the 2nd will be defended.