I respect this opinion, and some of my neighbors feel the same way. For me it is a matter of assessing the relative risks, and there has not been a violent crime in my town in anyone's living memory. I am certainly not opposed to gun ownership, but a biathlon rifle is not exactly made for self-defense.

There is a benefit to living in an area of trust even beyond the mental benefit of being free from worry and stress. A great bonus for me is that I do not have to be home when someone needs to come service the heating system or look at the pipe under the sink. Local tradespeople know that the doors are generally open in our neighborhood so they can come and go as needed without anyone having to take time off from work to let them in. It is also very helpful for our neighbors who can get into the garage to borrow a tool or leave something they just baked on our kitchen table.

There are definitely places where I would probably not feel comfortable leaving everything open, but I am glad that most of my life has been spent in a community where we do not need to worry about our personal safety.