You do realize if the insurance company knows you left the keys in the ignition and your vehicle is stolen, they will not pay for it?In my experience, my wife locked the door on her car and the Democrats busted out a $500.00 window to steal her pocketbook with $20.00 in it.
I leave my vehicles unlocked, and the keys in the ignition. I'm not worried about getting in my vehicle and there be someone hiding in it.
If I enter my house, I would like to know if someone has forced themselves inside. Your analogy between car and house is very Liberal.
I also leave $10.00 on the seat in case the crack heads come by so they will be content and not steal my tools.
I also have a motion detecting camera recording system all around my house and a yard dog.