Why NOT day cares?

So, given the case in Cobb County, I was talking to my mother who used to work at Kindercare in Cobb County when I was young. Something popped into my mind as a possible solution to lessen the likelihood of kid deaths due to parents forgetting them in cars... not like this case. It's a long shot and would take a lot to implement BUT in the long run could save a lot of babies etc.

If you are in school and late or don't show, they call home to tell you parents.  If you work and don't show when you typically do or at all, most bosses will call to find out what's going on unless you cleared it ahead of time. Why not the same for day cares?

You have a regular group of kids that are to arrive by a certain time and you weren't told anything different about a child's schedule the day before when they were picked up etc.One was say an hour late and it isn't typical of them. I say, implement a system of calling each parent to see if they are running late, the child is sick, or if they won't be there that day.  This way, it initiates an alert of a possible baby in a car situation.

My mom's thoughts were that it is a great idea but it is a lot to ask of a day care to start doing.  Now, I'm not saying it is the day care's fault in ANY of the previous situations AT all. I just think they could help prevent these situations and they might feel better being able to do something to help prevent then trying to do something afterwards to console the family.

What do y'all think?