Valentina changed her mind about Euthanasia after meeting people who responded to her plea to be euthanized in order to end her suffering from cystic fibrosis.
I imagine this would be the same for Bill 52 here in Quebec. A person can say and put in writing they want assisted dying and change their minds as the time draws near.
None of us knows unless we are living with a chronic disease, illness or palliative diagnosis what it is like. I imagine there are good days and bad days along with days with lots of frustration, anger, and pain.