I agree that misogyny and ageism is at play . It is depressing to think of the focus on looking young etc that permeates its way through all parts of society .
I think that film / netflix / tv etc actresses will have a huge amount of pressure on them to maintain a youthful look . As well as other women in the public eye .
This will not be the same amount of pressure we will feel , but as females we are fully aware that we have been judged on our appearance by men and other women . I do get the irony of pointing this out when we are discussing celebrity appearances. There is a double standard there but it is still a relevant discussion .
I think Nicole Kidman looks great ( figure wise but not so much facially ) . She has difficulty expressing her emotions due to the amount of work she has had done . Look at her recent Graham Norton appearance .
However comparing her to e.g Sigourney Weaver and Andie McDowall is probably slightly incongruous . Neither Sigourney Weaver , Sharon Stone or Andie Mc Dowall have had multiple leading lady / romantic roles for probably a good few years . I think they all look amazing and admire them greatly for their ageing gracefully .Sigourney Weaver is still working on the Alien films and long may this continue , but that is more action / horror / sci - fi role than a romantic love interest .
I appreciate also that Nicole Kidman is younger in any event . She has continued to have the leading lady / romantic roles . Two of her films / netflix roles recently she has also been cast as an older woman being pursued by a younger man . Agree also that Zac Efron for one of these also has had questionable procedures .
So Nicole Kidman will still be getting offered these roles , she is a great actress and her name attached to a film will ensure funding etc .So it also boils down to money as well and how long stars can remain bankable . She also has wanted to continue to accept these roles .
It does seem that those actresses who are seen as " character actresses " and may not have been known for stunning conventional good looks are able to have greater longevity . But whilst there are exceptions most of these aren't being routinely cast in the big romantic films as the leading lady .
I think there is a move against ageism and some of the recent romantic films with older 50 / 60 plus actors have been great , but I am not sure they have been universally popular with the younger age groups .
I would say that I greatly admire those celebrities / those in the public eye who are not actively encouraging / even discouraging their offspring from going into similar roles due at least to this public pressure and scrutiny .