I hope your Mum gets better soon Cas xxxx
As for the other comments, well, just pay no heed. Imagine if your child/grandchild was hit by one of these things and shoved into the path of an oncoming car. Perhaps the situation wouldn’t seem so amusing then. I’ve seen them being ridden in the road, causing a queue, and all sorts, and yes, one day I may need one. But these are motorised vehicles and still should have some kind of licence to be used safely, not only for the person using it but those around them too.
As a final note, just because someone uses one does not mean they are suddenly above everyone else, disabled drivers still need a licence to drive a car, same difference, just smaller vehicle.