A person who dies without a will is called âintestate,â and in that situation, state laws regarding inheritance determine asset distribution regardless of what the deceased person may have wanted.That is, under intestacy laws, a distant relative could end up inheriting a deceased person's estate instead of his or her lifelong companion. A last will ensures that a testatorâs wishes regarding asset distribution is followed and that the stateâs intestacy laws do not kick in.Moreover, in your will, you can name a guardian for your children as well as set aside funds to ensure their support and comfort as they grow up. You may also choose to provide for the care of pets after your death in your will.