In career essentials a 65 year old graduate is likely to be healthier than high school dropout of what age?

There's no single definitive answer to this question. Health is influenced by many factors beyond age and education level, including genetics, lifestyle choices (diet, exercise, smoking, etc.), access to healthcare, and pre-existing conditions.

A 65-year-old graduate *might* be healthier than a high school dropout of any age, even a much younger one, if the dropout has poor health habits and limited access to healthcare. Conversely, a younger high school dropout with excellent health habits and access to good healthcare could be healthier than a 65-year-old graduate with poor health habits and pre-existing conditions.

Therefore, comparing the health of individuals based solely on age and education level is unreliable and statistically meaningless.