The “worst conversation” of Marisa Broome’s life was when her father, David, a former senior banker, acknowledged his rapidly advancing dementia meant he would have to appoint a guardian to look after his affairs.

“We went through a box of tissues as he handed over full control of his life and fortune to make sure there would be no loose ends before he lost his memory,” says financial planner Marisa about her father who would die at 79, two years after being admitted to a care home.