That is true - what better than a first hand account. I know more than most about Britain pre-1939, I should think. Particularly the royal My education was very heavily focused on British history, particularly about the government and the monarchy, even before university.
Reading and writing, certainly. I am not the man to teach speech, though. I have a terrible stammer. It would take forever.
Yes, it might be useful knowledge to have, and the team work and problem-solving skills are quite transferable to other subjects. Keeps it less classroom based, as well.