Like most things in life, everyone is different. We all have a different genetic code and we all have done different things in our lives that have a negative and/or a positive impact on our bodies. Smoking, drinking, sun exposure, use of moisturizers, stress, illnesses, etc. So there are many variables when considering why some people age gracefully and others look like a wise old crone. Both have a beauty of their own and should be appreciated for that. So I don't think people should have a preconceived idea of how a person has to look at a certain age. Do thing things that make you feel good about yourself. Play up the "gifts" you have been given and work on the things that make you feel down about yourself. And never judge anyone else.