Have you ever noticed how people age like their Motorhomes?

They don’t shine like they used to.
They get bumps, dents and scratches on their bodywork.
Their headlights get out of focus.
Their gearbox isn’t as good and they take ages to get any speed up.
They overheat for no reason and every time they cough, sneeze, or
make a sudden change of direction they have a water leak or a backfire.
(Drawn from personal experience)

And if you are lucky they leave home and forget where they came from.