I too agree.
Times have changed so much since I was the age to go trick or treating . It used to be that if the porch light was on ,the house was "fair game" .You could go to a house regardless of if you knew the person or not and not have to worry about thing's like child sex offender's and the like's .
About the time that my parent's stopped letting me trick or treat was when there started being horror stories of people putting razor blade's and needle's in apple's . That was around '72 or '73.
It seems the "evil" in the world gets worse and worse.