Seems like the only people with your concerns are Trump supporters who didn't notice that Trump couldn't walk down a ramp and needed note cards to remind him to say things like "I feel your pain".You are not the POTUS who can start a war or sign legislation that will affect us all.
Have you seen the videos of Biden speaking? Many times he does not know what he is saying or where he even is. The man needs note cards to tell him where to sit and what the event is all about. He turned around after speaking once and put his hand out to shake someone's hand, and the only problem was THERE WAS NO ONE THERE!
I live in a retirement park in Florida and most of my friends are Biden's age. Believe me, none of them are capable of being the POTUS which is a highly demanding job, both physically and mentally. They aren't capable and neither is Biden as we all can see.
Biden is doing a terrific job as POTUS, with multiple massive accomplishments in under 2 years.