I think it's a complicated topic. As a trans woman there are many benefits to a number of cosmetic surgeries that I can get, such as dysphoria relief and unfortunately less discrimination.
Personally I feel everyone should have the option to have a body they are more in tune with. I have a cis friend that wants to reduce the size of her breasts. She briefly mentioned wanting the surgery for the sake of her back, but regardless of reason I think it is always valid to pursue cosmetic surgeries if desired.
There's of course the issue of unrealistic beauty standards and the like which impacts us all. For me I dunno how much of my dislike of my face is learned and how much is innate. I'm guessing it's both. Hormones changing my body made me like it much more so I already have some sense of how much things can improve and how much it improved my life.