I ask this because recently Physio and I decided to leave everything to our two boys - which meant cutting out our girls completely.
Why? Well, we realised that if we both died (e.g. car accident) all four children would be entitled to our estate. However, knowing the girls, their being JWs, they would undoubtedly donate some of their inheritance to Watchtower. We couldn't stomach the thought of this occurring and so took the action we did.
Should the girls ever see sense and leave the Borg then, obviously, we can change things.
Just thought I'd share in case others haven't thought of the consequences of not writing a will.
Dansk