Why aren’t people proactive with home security/cameras?

I read a lot of posts about people looking into cameras and other forms of home security AFTER an incident has already taken place and I always wonder why people aren’t proactive and get these before anything happens?

Cameras won’t prevent burglaries and whatnot but it’s still good to have. Maybe I’m super paranoid but I ensured I got cameras installed not long after moving in. I got a cheap £30 camera for the back garden which records in 2K and has great motion detection + a bright light. My front ones are more expensive common brand ones but I got them discounted.

So I’d like to ask, if you don’t currently have any cameras, why not?

And also, if you don’t have a smart doorbell, how come? I have a peep hole but love to see who knocks, who walks close to my door or delivers parcels when I’m not home. I also have a floodlight camera but I like to have angles 😁

EDIT: so many responses. I probably won’t spend much more time replying to each individual but thank you for participating in this thread! It’s interesting to see the varying opinions.

Also, I was only referring to outdoor cameras. I should have mentioned that. I don’t and will never have indoor ones for complete privacy.

And for those worrying about others’ privacy, just get a camera that has activity and privacy zones to prevent recording your neighbours and other people outside your home boundary (if you do want one) 👍🏽