What is fair re:money to grandchildren

[lookinginsidemywindow]

I will start by saying that I am NOT thinking of saying or doing anything about this to my father before I start getting accused of being ungrateful or other stuff, but trying to work out in my head what is fair.

My father started a saving fund for his first granddaughter (my niece) when she first was born. I then had another girl and my father opened a fund for her too with the same amount of money.

My brother has then had 2 more girls and is keen for a boy so there is a chance they will have more. I am not able to have more for various reasons so we will only have her.

I am not sure my father would be able to afford the same amount for all the grandchildren.

Is it fair that he keeps the same amount for mine and divides the rest to cover all the grandchildren from my brother's side, or shall he reduce the money all the grandchildren receive?

I repeat, I will let my father decide what he wants to do and gracefully and gratefully accept his decision.

I'm one of 3 cousins are 4, and each family got the same, that was fair enough too, but either by family or by child the same.

My Sdad told me that he has left myself and my brother the same (small) amount fo money in his will for us to give to our DC. He has done that despite my brother having 3 DC and me having 2.
I don't expect anything but its very nice of him and I wouldn't care if he had done it by child even though as a family we would have got less.
Entirely up to him

Yes, it's just so potentially fraught if you can't be absolutely positively definite that no more GC could ever be born - that's assuming that you want all of your eventual GC to benefit equally.

In an extreme example, US President John Tyler, who was born in 1790 and died in 1862, probably would never have expected to have a grandson who is still alive in 2025!