Might be, but everyone, even criminals, are taught proper trigger safety by movies and tv nowadays.

Much like movie mimicry turned Italian street thugs into sharp-dressed "mafiosos" back in the '30s, and the '80s ghetto gangster movies made the sideways pistol hold de rigueur amongst wanna-be gang-bangers for a decade, the new trend in war and crime movies of proper weapon technique is copied by those who may never get any real training in their lives.