When I sat for my driver's license in the U.S. I only got one question wrong, something about the restrictions relating to drivers under the age of... 16, 18? I guess I didn't pay much attention to that section because it didn't apply to me. But I should have known better. Learning the road code is not just about obeying the law, it is about knowing the law and help the community be safe.
A good case in point is the change that will appear in next year's copy of the California Drivers Handbook requiring drivers to be aware of the law against leaving a dog in the care during warm weather. This is important information, not just for the safety of your own pets, but as a reminder to keep an eye out for pets left in dangerous conditions and to report these to the appropriate authorities (if in doubt, the police).
No dogs in hot cars: California puts warning in driver manual