I already have one but it's ready for a update.

Question is. I have 2 children And 2 grandchildren
One of my kids has no children one has 2 children

Regarding money. Would it be fair to give 50% of the cash to my child without kids. And split the other 50% between my other child and grandkids.

Or should I just split it 4 ways?

Half of me thinks a fair way would be 4 ways but then I think why should my other child be penalised because she couldn't have kids.