Unless you have no assets of any kind, the answer is yes. If you die without a last will and testament or a revocable living trust, state law will control the disposition of your individually held property. Settling your estate without a will or trust will be more troublesome and more costly, and it will be burdensome for your loved ones. Additionally, in a will or a trust, you get to choose who will administer your estate or trust; contrarily, if you do not have a person designated in your will or trust, you might have someone whom you would not want being in charge of your estate.
Link/Estate planning & probate page