First come, first served. Everything must go.
Why so you assume the state will get most of it? Intestacy laws normally have the possibility of distribution to distant relatives.
I would enjoy the hell out of any money anyone wants to bequeath to me. 
I don’t (at present) plan on having any children, but I have family. No siblings, but quite a few cousins, several of whom have one or more children. I’m reasonably content to leave them modest bequests from Crazy Great-Uncle Seaotter.
If I have amassed such wealth that there’s a significant amount left over, I’ll start a foundation. It’ll give grants to scientific, charitable, and artistic projects. As legacies go, having your name attached to important inventions, works of art and so on isn’t bad at all.
When I’m 60, my nephew will be 28. My cousin’s kid and my best friend’s kid will be 23. Those ages are still young enough for the money to be of use – more schooling, to help with a down payment on a house, whatever.
If they were going to be 50, that’s another matter. 
I have a nephew and niece. I have a place-holder will structured so they’ll get a small amount at 18, another amount at 22, and the rest at 25.
Of course, I hope to be alive to give it to them myself (and so avoid inheritance tax).