It could be a good idea to set aside a small amount for grandchildren. They may benefit from the gain in value more then we will or even our children will. I'm setting some aside anyway whether it's for me later or to pass on.
That is a good idea and I think that I am also going to do that and teach them a bit about Bitcoin if they are interested.
If they are not interested then I will not because I do not want to force them on using it.