I’d be so scared to let a kid do that now. Barbed wire is everywhere, everyone wants to brandish a gun at strangers, and truck drivers can’t even see pedestrians anymore.
I don’t have kids though, because I couldn’t force a kid to hide indoors all day, either.
We used to scramble over barbed wire fences like it was nothing. My dad actually speared his leg on a fence spike as a kid, at least barbed wire just cuts you up a bit. None of our parents had any idea we were doing that though, we’d come home if we needed a plaster and say we fell off a bike or something.
Or more likely, they knew nut didn’t care, because they did all the same tbings.