Studies of “forgotten baby syndrome” are underway.
en.m.wikipedia.org
It seems (and it is slightly mentioned in Wikipedia, too), that for the most parents it is less of a guilt and more own misfortune. Something about a specific brain wiring leading to relative weakness of prefrontal and frontal cortex. As of 2019, 43 percent of caregivers who unintentionally left children in hot cars did not face charges, and 11 percent were charged but not convicted.
Is leaving a child to die in a hot car a memory lapse or a crime?
The reason is, it is a memory issue, and unless there is a strong concern that kids were intentionally left in a car, you can’t punish people for weak memory, although such parents’ access to kids should probably be restricted.
CS is sort of a mid-range case. He does rely on a car as a nanny, but I also wonder if he is, essentially, a born loser who managed to marry a much smarter, more independent woman, and the only way to prove his meaning in the world is by putting on a show of being a good father. In other words, is his just an alcoholic, or is it all - lying, drinking - meant to cover up hopeless weakness of his attic?
So, I have a feeling that he truly has brain wiring problem, but possibly a personality disorder, the punishment will be mid-range. He will not be jailed, but will have to jump through way more hoops than most of these parents. Of course, there will be a huge loss for both spouses because any community will be harsh on them.