To the contrary - In many countries, average happiness is higher when you are older, despite physical challenges. The lowest happiness is typically in the 30s and 40s.
If you want to approach it from a happiness utilitarian perspective, a year at 60 or 70 is usually worth more than a year at the lifetime average happiness.
If you want to approach it from a happiness utilitarian perspective, a year at 60 or 70 is usually worth more than a year at the lifetime average happiness.
Various sources show something like this: https://www.brookings.edu/wp-content/uploads/2020/12/201207_...