I always forget that I have grey hair....

When I stand before the mirror each morning making myself tidy for the coming day, I do notice the head of grey hair and eyebrows threatening to follow suit as well as other signs which show that the svelte young thing with a honey blonde bob left the building many years ago.
However, when I quit the bathroom I quickly forget my appearance.
So when waiting at a bustop last week a pert young thing in her thirties stood back to let me enter the bus first, saying "Elders first", I was shocked.
Did she really mean me?