Would there have been such a fuss if the mother had left her money to a children's charity or cancer relief? I disagree with the courts on this, what is the point of expressing your wishes in a will if they can be overridden? Why should a 50+yo woman think she's entitled to some of her mother's estate at all, let alone when neither of them appears to have behaved in a terribly friendly manner to the other for decades.
In response to the cycling in London argument, I have now stopped doing so whereas I used to cycle commute 12 miles each way daily. My first accident, resulting in permanent damage to my left elbow, was due to a pedestrian running into me when they crossed the road without looking properly. The second accident causing me multiple bruising and abrasions was when a car drove into the back of me when I was stationery at a junction. However brilliant (or not) a cyclist I may be, neither accident could I have avoided. But I now have a very good pet solicitor.