That is wonderful. I am experiencing the opposite. Until a few years ago people thought I was in my late thirties, then late forties. Now people are not surprised at my age (late 50s early 60s). Part of that is that since I have lost weigh, wrinkles do show more. Especially that channel area on my neck which I never had before 5 years ago.
Having said that, I am always surprised at people’s ages. I would say 1 out of 100 looks significantly younger. There was a 64 year old that I met at a convention that I really thought late 30s. Most people it is the other way. I was in a store a few years ago and the cashier mentioned the movie “Carrie” and said I was probably too young to have seen it (came out in early 70s). I thought he was mid 60s, turns out he is a year younger than me
I think there is a genetic element. Two of my kids (one mid twenties, the other late teens) keep getting mistaken for much younger. My younger one who was 18 at the time when we went to renew her passport was asked why her father did not come as well. When I said she was 18 the clerk looked embarrassed. If you are under 16 both parents have to come or sign something. The funniest is my older one. He really does look like a high school freshman even in his mid twenties. When he went to buy himself beer they would charge him $15 which was expensive for the beer but he assumed it was the area. They never asked him for ID but he did not think about it since he was well over 21. One day his friend buys the beer and was only charged $10. They had assumed he was buying it illegally and they were charging him a premium
My father also always looked much younger. The number of times people assumed we were married is ridiculous. He no longer does but still looks ok for his age. My mother always looked her age until about 10-15 years ago. Now she looks (and acts) about 15 years younger. She is very active every day. Always has been but has not let up