I see your point. I suppose you might become blasé about your sacred responsibility for a precious human life. After a few months an infant is "same old, same old" to you.
All I'm saying is that your analogy is faulty, unless she is indeed driving with that cash every day. I'm not excusing the mother here in any way. In fact, I'm the one on this thread saying that SHE is responsible for this tragedy and no one else. Not the "nanny state". Not the car manufacturer.
Personally, I don't understand how one could forget a 5-month old in the backseat. Then again, I've not had the experience of being responsible for one so young, so I'm a little hesitant to pass swift judgment on the mother here and condemn her to hell. I do understand the concept that it would be a little easier to forgot something of great value in the backseat IF it was there every day, as opposed to one time.
Do you get it now?