is too much for our brains to handle

There's not "so many children dying in cars"
In the US an average of 35 or so every year,and yes it is very sad and the parents are f'n idiots.
BUT consider how many children go for how many car rides in a year- billions?- and the odds are extremely miniscule.
However around 3000 a year die in car accidents,and usually 1500 from cancer.

Irresponsible. I also don't understand how so many dogs get lost.

they all are attached to their smart phones.