Why is it legal to leave a child alone in any car in any weather for any length of time?  It's incredible the number of folks who have had their car stolen with their child inside while they dashed into the store or service station or whatever.  Yes, I know it's an inconvenience to get your kid in and out of the car seat, btdt, but I can't fathom the "inconvenience" of watching your child ride off with some nut who wants your car.  Is it really that tough to figure out your errands so you don't need to leave Jr alone in the car?