Yes. A simple estate plan directs exactly how you want your assets, however many or few, to be distributed. Otherwise, they are distributed according to state law, which may not be how you wish. In addition, an estate plan contains documents that state who can make medical and financial decisions for you if you are unable to (powers of attorney), and what you would want them to authorize or not authorize for your health care (living will). For adults who are married with minor children, an estate plan is even more important.