Poor man has Parkinson’s though
Horrible disease and no two cases are the same. Some stay mild for a long time but not all and very demoralising for all concerned. Mobility varies and not all get the “ shakes” so not obvious sometimes.
We had a Church of Scotland minister locally who got around on an upright trike but at funerals the undertaker had a man at his elbows on either side in case he toppled forward.
Some visiting yobs started making fun of him on a ferry once but the local junior shinty team who had just won a match soon sorted them out without too much injury. A cayman is a fearsome thing.

I unfortunately am a minor expert on Parkinson’s.

Re the yobs It used to be thought that taking delinquents to places like this was good for them. Free holiday.