Oh shut up.
The number of people that keep living in denial and rationalization of their sub-optimal circumstance astounds me.
Just face it and be honest. There is nothing noble in being a 50 year old for an infinity given the option to be youthful and mentally/physically fit instead.
Vanity, superficiality, shallowness... All these buzzwords that criticize something that is perfectly natural to desire, in an effort to signal some higher moral ground.
Come on.