Walmart now sells airsoft Mortar and hand grenades for the serious prepper kid training.
Black-Ops-Air-Soft-Mortar-Hammer
When I was a kid, the closest we got to prepperism was camping outside, freezing our asses off hunting, or fishing on a hot day. We had to learn to clean anything we shot, we had to help butcher chickens and cattle, and grow a garden and can food. But that wasn't because we were afraid the world was coming to an end. It was because we lived on a farm.
I doubt my parents would have bought us mortars and stun grenades from the kid's toy section of Walmart. Because they weren't fucking stupid parents.