Hi,
I am 54, live near Brisbane, and I too am hooked on David's books.
I have only just begun on my sugar-free & vege oil-free journey, but made a good start on the weekend by cleaning out the pantry & fridge.
I didn't consider myself a sugarholic, as I thought I could resist cake shops etc, but have found the first few day's withdrawal symptoms (headache, restlessness, joint aches) a surprising event.
I am going to make my way through the recipe book, and find recipes my grandchildren will enjoy making and eating. :)
Wish me luck.