In a YouGov poll conducted between July 25-29, 59 percent of Republicans surveyed said they would prefer a president under the age of 75. Trump celebrated his 78th birthday in June. Forty percent said they had no preference, and just two percent said they would prefer a president over the age of 75.
because old is generally not where smart and empathetic comes from.
Also you start to get into the area of cognitive and physical decline to the point where you start falling over if you aren’t careful, or just cant really think as well anymore.
Usually someone that encompasses the traits you propose is going to be younger, 60’s probably.