That's also a difference when you have a gun culture and not. I remember when I was a kid in France, never, never a police officer came with a gun directly on the face of someone. Nobody had guns, so police officer knew kids were played with fake guns...
In 1998, when I started to play Airsoft, we were playing in old 2nd war fortification, completely open to civil and it wasn't private place. When police were there, they just asked to check our ID, if someone had less than 18, Police confiscated airsoft gun and asked parent's guy to come to the Police HQ to get back the gun. No charge assault / Crazy shoot.
Time changing everywhere, but we are still able to play on public place. That's something I never and I will never see here.