I am childfree. As my only sibling tried to cheat me out of the inheritance I was to receive from my father (unsuccessfully, though I had to wait over a decade to receive it), I won’t be leaving his kids anything. I’ve had no contact with him, his wife, or my niece and nephew for almost 15 years, as I told him I was not having anything to do with a thief. His rationale for trying to swindle me was he should have received all of my dad’s estate because he had a family and I didn’t. That’s not what my dad’s will specified whatsoever. We live in different countries, so I guess he thought he could get away with cheating me. He then told me when he had to give me the money that he was disabled (a baldfaced lie) and that meant he didn’t get around to getting me my money for 11 years.
He ended up having to sell my dad’s house due to financial issues, and then there were questions from his lawyer why it wasn’t sold right after my father died, so I ended up with the money from the sale after that large delay. To be fair, the money came at a good time and helped fund my earlier retirement, so the universe has a way of justice about her, that is for sure.
My will dictates everything is left to DH if I predecease him, and if he predeceases me, most of the estate goes to one charity, and a few specific items go to another. If things would have been different, I would have loved to give my niece and nephew the money, but I don’t know them as I didn’t watch them grow up.