Everyone in my area stays outside, no matter the weather. No kids knock on any doors. Also, no one leaves out a bowl, that shit would be gone in minutes. But people are outside with portable fire rings, music, some have cocktails for the adults. It's the only night of the year all of the neighbors are outside and socializing. Honestly it's great.
There's research on this, it's a confirmed human behavior. People park and sit etc near others. So good luck changing human nature.