How old is too old?

Both President Biden and Donald Trump have been fumbling in their interviews regarding the election amongst other things. Right now Trump is trending because he mistakenly referred to former President Barack Obama instead of the actual president; Biden.

Though with all this going on, how old is too old? We are basically seeing these candidates crumble before our eyes, but these are the men we trust to run the country. With all the policy change and radical plans on both sides.. maybe this is why our country in such a disarray.

Between Biden stating the capital of Israel and between this and Trump not knowing his own wife’s name..; how are they competent enough to run the country? With Biden being ruled incompetent to stand trial but he’s fit to run office, maybe we should pic someone in the middle

Not to old, not to young. Honestly this should apply to all political positions. What do you think?