Yeah let her use one of those nice mobility scooters, they don't make you look like an invalid and plenty of older dignitaries use golf buggies which are similar, for occasions where they might have walked when they were younger. The Queen already knows how to drive a car so it shouldn't be a problem to her. The problem might come if she has to go up stairs or a steep ramp - that's where a light, pushable chair has advantages
Private spinal surgeon appointment
Family history of macular degeneration



