@izzythepush,
Maybe there are fear studies. I've no idea.
I've no idea, and I do agree fear is one reasonable (of many) takes but it seems very pumped up lately.
My husband and family when he was a teen dealt with home invasion in south Los Angeles, so I am not just blabbering. The rifle in the closet was not available.
Their mother, very crippled from arthritis and probably dismissed and known in the area, went out the front door and screamed, at some point.