In my opinion blue hairs are dying out.
Ask your wife if they were truly blue hairs or grey haired men with women who’s hair was their recolor of choice.
Hah! She was adamant that they were women. She was more flustered by the old man running the A-J voter book commenting on how she looked too young to vote! He was there when I went, too. He is quite a card; looks to be in the 85+ age group, wearing high waters, suspenders, and a Spam baseball cap.