That's not an annoyance, that's common sense.
I mean, I get it, it's not like in Croatia or Bosnia where every child ever since the 90s wars gets "the talk" not about condoms but about "this is how ammunition looks like, and remember that the enemy also placed mines in everyday waste like cola cans or in children toys, DO NOT pick up random stuff you find while playing and stay THE FUCK out of fields and forests marked with 'Pažnja mine' signs"... but hey even in Germany everyone should know that picking up ammunition is one of the dumbest ways to off yourself.
The only ones actually dumb enough to do that are people harvesting leftover ordnance for its explosives or to sell it on to "memorabilia" collectors [1], and headlines like [2] are routine whenever one of these collectors/harvesters either mishandles one of the items or they go off on their own.
[1] https://www.youtube.com/watch?v=gWWGdxhSsS4
[2] https://www.rheinische-anzeigenblaetter.de/rhein-sieg/c-blau...