Wow, what a terrible story...
So, are seatbelt cutters and window punches allowed in schools? I'm guessing not.

As for teaching my girls we started long ago on "hugging a tree" if lost, not to play near pools unattended, not to talk to strangers (unless lost), etc... I need to add escaping a submerged car.
I think Texas has a law that says young drivers can't have anyone under 19 in the car with them or something like that. It came about after a lot of crashes similar to the one you posted.
-Blast