What kind of life do people 77 + have when there are?

My mother is 81 and lives life and enjoys more so then some 40 year olds I know. She has 3 dogs, still able to drive safely, lives with my older sister in a log cabin on the lake, sees her grandkids often, one friend she has known for 20 plus years and she seems very happy. I think its what you make of it, if you wallow in misery then that is what you will continue to get.