Who said it was an excuse? I don't understand how mitigating risk and exercising common sense means that you're excusing the criminal. Where are you getting this from?
I'm beginning to think it's related to when, where and how you were brought up. We always locked everything. Always careful about what was said on the phone unless you knew who you were talking to. Never left things where people could see them. To this day, I will not put my name, picture, address, phone number, email address or any other personal information anywhere on the web (with the exception of known secure connections).
Others don't seem to hesitate a moment to post their whole lives all over the open web daily.