I ask because my sister is younger than you and she is not.
Nor am I.
And from everything thing I've seen Trump gets around pretty good. He APPEARS fit enough, like my grandpa who lived to 85.
Of course grandma lived to 92 and was a near invalid for the last 10 years.
I am nowhere near being physically fit enough to be President.
My husband is 80, at 70 with multiple health problems he would have been able to, he was still breaking horses then.
My grandmother at 75 could have. It varies from person to person. I have fibro though so I haven’t been fit enough for years.