If you die without a legally valid Will then you are deemed to have intestate and rules set out in legislation will decide on how your estate is distributed. It is particularly important to have a will where for example, you have children under the age of 18 years or have distant next of kin or are the surviving spouse.
An Enduring Power of Attorney allows your nominated representatives to efficiently make decisions regarding your care and well being while you are still alive but unable to make decisions due a mental disability. If you do not have an Enduring Power of Attorney then it may be necessary to have you made a Ward of Court, which is costly and burdensome to your next of kin.