Every chud in my life is obsessed with someone breaking into their house and the situation being resolved with the discharge of a firearm. And these are people living in low crime areas out in the suburbs, with no pedestrians. It's frustrating to talk with these people since their whole worldview is a racist panic over some imagined brown interloper invading their white fortresses.
One of my coworkers tells me he always pulls out his Glock to check the corners when he comes home in the evening. Another has a CCTV system and an AR15 by his bed. I personally don't own a gun anymore because I don't trust myself with one, and chuds will ask me what I'll do if some mentally unwell person high on amphetamines decided to enter my apartment. I guess I'd leave or call an ambulance? It seems so unlikely of a scenario that even if I had a firearm I probably wouldn't use it right, or even register this person as a threat quickly enough to do a John Wick style takedown.
How many home invasions are actually stopped this way? Do chuds all think they're Robocop?
A lot of it is for deliveries. Imagine having your favorite treats arrive, and then some sneaky low-life [minority] steals them from right under your nose! But if you have cameras, you can give the video to the police and then you get to imagine the brutal justice they will enact on your behalf.