At least in Germany, it's illegal to leave your car door unlocked. (Not sure about house doors.) The rationale is that it invites crime.

Actually it's illegal to lock the housedoor, because of emergency situations. In case something happend and the people need to flee, they could be trapped in the house.

Also technically it's not illegal to leave your car door unlocked, Police just handles it that way. The law demands that the car cannot be misused.

It's not illegal to lock your house door, that's only locks that require a key to unlock from inside. Normal deadbolts are fine. You just can't lock people in.

Example here http://www.ahouseonarock.com/chesterfieldhomeinspector/doubl...

People have used these thinking "Someone could break the glass, reach in, and turn the deadbolt to open the door," but it's really not worth the trade-off of "My house is on fire and I can't get out."

I didn't know that. Is it possible, then, that a person who leaves their door unlocked is punished while the person who stole and dumped the car is not?

Wtf, no. The person stealing the car is of course punished as a thief. (Unless he doesn't get caught, obviously.)

And is that not a classic case of victim blaming?

It is victim blaming, but some countries obviously deem that acceptable behavior, to the point of putting it into law.

It is in some countries. The logic is: if you lock your car, it is harder to steal. If it's stolen because you left it open, it's your fault and you pay for police time and investigation. If a policeman sees your car unlocked they can give you a ticket for leaving that way.

What about those of us that don't want our car window bashed in by some crackhead cause the door is locked? I'd much rather lose a few ones and tens in my coin drawer than buy a new window.

Maybe not, but the insurance will shrug at you if you make a claim for theft.

What are you storing in your car that is worth more than your deductible? Here in Seattle, in certain bad areas you'll find numerous car doors unlocked, usually cause the owner doesn't want their window to get smashed by a crackhead over a sub-$100 potential theft.