Again, I don't understand.
I would think that most people would be for anything which could minimize this occurrence. Apparently some people aren't.
Now, since no one bakes their kid intentionally, no amount of laws will directly prevent this. But it may, just may, be in the back of someone's mind when they leave their car.
It's easy to get busy and distracted. Anything which might help bring attention back to the situation should be applauded. I think.