I keep hearing this, but I don't believe it. No kids, no assets of any significance, and my state's intestacy laws are fine by me for what there is. Of course, I'll revisit when my situation changes but I just can't see why making and maintaining a will needs to be a high priority for me.
My mom was on her checking account (because my mom took care of a lot of her finances) so my mom automatically got all of her money in the world - $900. The only other thing she owned was her house. Her will said it was to be sold and the money split between her children. Exactly zero of her children were interested in the house, selling the house, living in the house, or anything to do with the house. So the house was abandoned along with all the stuff in her house. My grandma knew that would happen (the house was literally falling apart - if code enforcement saw it then it would be condemned) but she made a will because she was "supposed" to.