At least one commentator suggested we institute a new holiday "Slut Day," when women can dress in whatever slutty outfits they choose, and give Halloween back to the little kids.
According to my mother, who was born in 1919, the custom of trick or treating was only instituted during the 1930s. Prior to that, it was just a night of vandalism and malicious mischief. In some parts of the country, the vandalism and mischief were transferred to the night of October 30. I have heard this referred to as "Devil's Night" or "Goosey Night." It seems to be more an Eastern thing. I have never heard of it being practiced in Southern California.