When you create a last will or a trust, the idea is to create a legacy. You can assign certain assets to loved ones, family members or even charities that you love and support. You may find, as life moves on, that you have reason to update your will. People you included as heirs may die, children may no longer require guardians or your family could grow due to a new member.
If you have not started the estate planning process, there is no time like the present. There are multiple estate planning tools that can help you plan for your family's future and even for a time when you may become incapacitated. For example, a health care proxy will grant someone you trust the authority to make certain medical decisions for you in case you are unable to make such a decision yourself.