In general, the property of people who pass away without a will is distributed according to general guidelines of succession that have actually been in place around the world for centuries by means of a decision of next of kin.
State laws that govern intestacy are designed to approximate what many people would specify if they were to make out a will, keeping the interests of certain recipients in mind, and this would particularly use to dependent kids. The lives of the majority of people aren’t that easy, and when you draw mixed families, non-familial relationships and very same sex couples into the equation, the laws of succession are most likely not going to be constant with your wishes.
Aside from monetary matters, if you pass away without a will mention laws will choose who makes medical decisions in your behalf need to you end up being incapacitated. Even if you have no financial possessions to speak of, you have to think about whether or not you want state laws to choose these things for you.
In a nutshell, if you die without a will, the state will make all of your decisions for you.