Why having a will is the most important thing you can do for your family Having a will is arguably one of the most important things you can do for your family and loved ones. While many find the conversation uncomfortable or are even superstitious, planning your estate ensures that your affairs are in order and that your family is looked after when you are gone — essentially you are saving them from possible disputes and hardships. Tracey Lange calls on Financial Planner and CEO of Momentum Trust, Jeffrey Wiseman about the importance of having a will. If you have a will at least if you do pass away your family knows that you did contemplate the possibility of you no longer being around one day.