I know that in certain countries like Japan or South Korea: it’s normal to leave the front door unlocked since the probaility of someone breaking in is low since their crime rate isn’t high. I knew a friend of mine who resides in Korea where they even left the car unlocked with the keys inside, can you do either of those things in America?
The US is as big as Europe.
Consider how many cultures are living there.
It’s quite comical to say “The US” implying they are one homogenous culture everywhere.