WOW. Thank you for the awfully wise, heartfelt and thought provoking comments.
Suz, you are SO right about the combination of sexism and ageism being toxic. It's never too late to start changing the way we think, especially when we are role models to the younger generation.
Jenni, I liked the Gilette ad too, but also wonder what my hubs will think. Like your hubs, he is very pro women's rights. More of a feminist than I am at times.
FashIntern, I agree with this: "I do think it is very easy and inaccurate to assume we can do things "for me" and not "for society", as if there were a clear, easy distinction, instead of recognizing that who we are as people is shaped at our very core by our social interactions".
I think it boils down to being honest and at peace with the decisions you make about changing, or not changing your appearance. You have to do it for the reasons that make sense to you. And not judge others negatively for the decisions they make if they are very different to yours.