The question is why do people feel bad about themselves? Everyone gets old, it is part of life. Why can we not accept that?
Because society (random people you interact with) treats you differently depending on your physical characteristics. And dealing with a bunch of people who are mean to you for no real reason is harder psychologically to deal with than dealing with a bunch of people who are nice to you for no reason. Ask any person who was overweight and lost weight whether they noticed strangers being nicer to them after their weight loss.
> Everyone gets old, it is part of life
This forum believe the silicon valley delusional tech executives saying we'll soon extend lifespan to 150+ years thanks to "ai", it's a transhumanist echo chamber, a hair transplant is nothing, they'd sell their parents for a neuralink chip
It's not necessarily feeling bad. It might be something makes one feel better.
I'm not unhappy with how I look. I'm happier after a haircut and a hot shave. Sometimes we make choices because they take us from "whatever" to "this rules".