Geordie613 you said, “There are a few cultural differences here. For example, In the US, President is a title, e.g. President Bush, President Obama. And they keep their title even after their presidency is over.”
I haven’t heard of a non-current president being referred to as President _________ today. In the US, don’t they say Former President Bush now, and will say Former President Obama. OR to reference an earlier time in history, sometimes a former president has his number in the title, such as Twenty-sixth President Theodore Roosevelt.
Btw, the whole Dayan titles in the UK is so interesting. I never knew that; thank you!