Eh? What does she mean you are ‘free’ from ‘gender’ as you age? IME the gender trap comes down very hard on older women in a way it absolutely doesn’t for older men.
I think she meant that there aren't the same expectations for appearance and such in particular, because you are no longer in the sexual marketplace in the same way.
But as far as not being listened to, that seems very variable to me. Some women seem to experience that, while others describe having more influence or power as they age, and being able to be more straightforward both because they are taken more seriously and maybe because they themselves are out of the sex game.
I don't think Moore is in a place where she is dealing with stuff like eldercare.