If no one ever told them the dangers of hot cars, would you be arguing this if the child died in one? If no one ever told them to not leave a child unattended in the bath, would you be arguing this when the child drowned? If no one ever told them to properly secure chemicals, and the child drinks them would you still be arguing for ignorance?

Lots of things aren't taught in schools. Many don't have wide reaching PSA's.

None of that changes the fact that a child died from a very preventable illness because the parents didn't think.

Ignorance is not an excuse for a dead child.