What is the prime age for a US president?

Or to ask it another way what age or age range would you prefer in a president?

Some of the things I think about if we want to look specifically at age

Experience
Is he old enough to appreciate the history behind current policies and practices?
What's on his resume? life experiences, etc.
Respect
Has he built a strong reputation among his colleagues or political circle?
Do people around him take him seriously as their boss?
Mental clarity
Is his judgement still strong and sharpness intact?
Social intelligence/awareness
Health
Overall emotional and physical well-being
Energy

I think late 50s is a good start.

via International Skeptics Forum https://ift.tt/2M8oGWn