Crime. I spent a lot of time in low-rent neighborhoods in the States, where you are sure to have a broom-handle in the sliding door and a nail in the window-frame to keep either from being opened too far. And a Louisville Slugger by the side of the bed, for those years when I didn't have a .45 easily available due to the Daughter being too young to risk having her find it.
We live a street away from a main road here. There are blue lights zooming down it many times a day (and night). On the good side, we don't have helicopters overhead several times a week, late at night, with the floodlights on. Now and then, yes, but not more than a few times a year. I don't miss being awoken by the blaring of the ghettobird's loud speaker telling me the description of who they want, and to be sure the doors and windows are locked. And to dial 911 if I have any information....
Knife crime? I can outrun a guy with a knife, given at least a little warning. They don't tend to chase you down, really. Unless they are nut jobs, and then there's not a lot you can do but try to disable them before they can hurt you too badly. Ok, realistically, I'm getting old, and am not as fast as I was, and cannot throw a punch hard enough to break a nose or kick hard enough to break a kneecap very well anymore, I'd assume. (No, don't ask.) So I just tend to be very cautious as to where I go, and who's around. Scanning one's surroundings is a good habit to be in. Like knowing where the exits are when you go into a public place.
That being said, I do still feel safer here as I absolutely cannot outrun a bullet.
They don't seem to have a lot (or any) of this here....
https://en.wikipedia.org/wiki/List_of_mass_shootings_in_the_United_States_in_2019I no longer jump and look for cover when a firecracker goes off or a car backfires. It's much nicer, this way.