That doesnt worry me one bit. Handguns were prohibited in this country in (I think 1998) after a shooting enthusiast went berserk with a legally held weapon, and killed 16 children and their teacher in Scotland. Just remembered his name, thomas hamilton. You can find out what he did.
Anyway, there has been absolutely no call from people to bring back firearms.
And I've never heard anyone here using the argument that "if only the citizen had a firearm"...such and such a crime would have been prevented.
That said the next teenager I see dropping litter on the cycle track and I'd most certainly stop him from doing it again with a Walther pkk. (and just so there is no misunderstanding, as sometimes irony is not taken well in the US I was only joking

)