He’s freaking old. There are lots of things to criticize, but I’ll cut him some slack for being able to walk upright at his age. I live in SW Florida and pretty much everyone here walks with a limp.
I looked in Florida for many years had been in South Florida plenty. I don’t live there now but I’m 72 and I’ve been around a lot old people and there are a limps here and there but there is not the same dementia / low intellectual level Shuffle to any degree. It is not just an age thing. His walk clearly indicates mental difficulties. Of course we have the advantage of listening to the gibberish he spouts and that helps make the correlation