I decided when I moved to France after retirement that my appearance was not important to me, as I never socialise and the sheep don't seem to care.
It did take a couple of years for the dyed blonde hair to grow out but now I am completely white and visit a hairdresser about twice a year, just for a trim.
I don't use make-up - in fact, I have used nothing but cold water on my face for about ten years, other than a bit of moisturiser to combat the wind on my walks.
I have saved a great deal of time and money by growing old naturally and I agree that looking 61 instead of 71 would add nothing to my quality of life.
My sister, who is 75, dyes her hair blondish, but always has white roots. She wear false nails which she paints bright red, and scarlet lipstick. She won't answer the door without her foundation, blusher, lipstick, mascara, eye shadow and eye liner in place. To me, she often looks clownish, but it makes her feel more confident, so of course I just say how good she is looking. She swears she does it for herself, but I can't help wondering if she would bother if she were on a desert island! It takes me about five minutes to shower, brush my hair and teeth and get dressed - if I am taking her out I have to give her at least an hour to get ready. I just read or do sudoku whilst I wait for her.
If wearing make-up and colouring your hair makes you feel good, go for it.
If not, don't!