I think it's awesome, all the power to them. The idea that aged women are somehow by default unattractive and should keep their bodies hidden at all times is disturbing to me. I've seen many attractive women who are 50+ or even 70+ who look great in revealing clothing. And usually, I think it's a sign of confidence.
I'm sure one day I'll be that kind of woman too. If I'll be able to "pull it off" at a much higher age than I am now, I've no idea. All I can say about my body's future is that I'll probably still be of average weight, and I might look similar to my mother, and I'll likely have breast implants. But the shape and firmness of my body should not matter. The way I choose to dress is not and has not ever been, for other people. Also, sometimes it's fun to be a bit of an eyesore 😉