Reply #117: Actually, what happened is that the news media just found out about the KNSA's campaign

[Euromutt]

The KNSA was already planning this, but the news media hadn't shown any interest until after the shooting in Alphen a/d Rijn. Moreover, the KNSA's campaign is primarily focused on shooting with air guns, not firearms, as it's illegal for anyone under the age of 16 to handle a firearm, and even over the age of 16 one requires a Verklaring omtrent het Gedrag (a "Declaration concerning one's behavior," i.e. a government-issued affidavit that one does not have a significant history of breaking the law, including but limited to criminal offenses) and, until the age of 18, can only handle firearms while under supervision.