Does a number determine our attitude towards life?

Does a number determine our attitude towards life?

My blogger colleague Mia Brummer is calling for a blog parade! With the topic of what women over 50 are actually good for. I find it a provocative and great topic! I'm well over 50 and I don't feel like 50. But who actually decides how women should feel at 50? What attitude towards life does old age bring with it?