looks don't fade. its just the aging process gets the best of us all. nobody can prevent grey hairs, wrinkles, sagging, etc as we age
Some people's more than others.
It's partially genetic and more importantly, lifestyle. No execise, bad dietary habits, dehydration, drug and alcohol abuse, smoking and sun damage will make a person look awful as they age.
But comparing a 21 year old who shovels McD in their bodies and watches Teen Mom/plays video games all day to a 40 year old who is fit and active ... most people would say the older person who takes care of themself looks better.